OFFSET
1,2
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10000
FORMULA
EXAMPLE
For n = 4; a(n) = tau (1*2*4) = tau(8) = 4.
PROG
(Magma) [#[d: d in Divisors(&*[d: d in Divisors(n)])]: n in [1..100]]
(PARI)
A007955(n) = if(issquare(n, &n), n^numdiv(n^2), n^(numdiv(n)/2)); \\ This function from Charles R Greathouse IV, Feb 11 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Jan 07 2017
STATUS
approved