DLMF:27.3.E5 (Q8006): Difference between revisions

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Changed an Item: Add constraint
Changed an Item: Add constraint
 
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Property / Symbols used
 
Property / Symbols used: Q12233 / rank
 
Normal rank
Property / Symbols used: Q12233 / qualifier
 
Defining formula:

ν ( n ) number-of-primes-dividing-nu 𝑛 {\displaystyle{\displaystyle\nu\left(\NVar{n}\right)}}

\nprimesdiv@{\NVar{n}}
Property / Symbols used: Q12233 / qualifier
 
xml-id: C27.S2.SS1.p1.m6aadec
Property / Symbols used
 
Property / Symbols used: Q12234 / rank
 
Normal rank
Property / Symbols used: Q12234 / qualifier
 
Defining formula:

n 𝑛 {\displaystyle{\displaystyle n}}

n
Property / Symbols used: Q12234 / qualifier
 
xml-id: C27.S1.XMD4.m1ddec
Property / Symbols used
 
Property / Symbols used: Q12244 / rank
 
Normal rank
Property / Symbols used: Q12244 / qualifier
 
Defining formula:

a r subscript 𝑎 𝑟 {\displaystyle{\displaystyle a_{r}}}

a_{r}
Property / Symbols used: Q12244 / qualifier
 
xml-id: C27.S2.XMD1.m1adec

Latest revision as of 14:15, 2 January 2020

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DLMF:27.3.E5
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    Statements

    d ( n ) = r = 1 ν ( n ) ( 1 + a r ) , divisor-function-D 𝑛 superscript subscript product 𝑟 1 number-of-primes-dividing-nu 𝑛 1 subscript 𝑎 𝑟 {\displaystyle{\displaystyle d\left(n\right)=\prod_{r=1}^{\nu\left(n\right)}(1% +a_{r}),}}
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    DLMF:27.3.E5
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    d k ( n ) divisor-function-D 𝑘 𝑛 {\displaystyle{\displaystyle d_{\NVar{k}}\left(\NVar{n}\right)}}
    C27.S2.SS1.p4.m12adec
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    ν ( n ) number-of-primes-dividing-nu 𝑛 {\displaystyle{\displaystyle\nu\left(\NVar{n}\right)}}
    C27.S2.SS1.p1.m6aadec
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    n 𝑛 {\displaystyle{\displaystyle n}}
    C27.S1.XMD4.m1ddec
    0 references
    a r subscript 𝑎 𝑟 {\displaystyle{\displaystyle a_{r}}}
    C27.S2.XMD1.m1adec
    0 references