A100890 - OEIS

A100890

Imaginary part of multiplier m of the Gaussian multiperfect number associated with the real part A100889(n).

%I #12 Feb 10 2020 09:02:09

%S 0,-1,2,2,3,2,-1,-2,2,-3,-1,-3,-1,-4,2,0,-1,-2,0,1,-4,0,3,-3,1,0,0,0,

%T 4,3,3,0,1,0,0,4,0,4,-4,3,-1

%N Imaginary part of multiplier m of the Gaussian multiperfect number associated with the real part A100889(n).

%C Let the Gaussian integer z = A100884(n)+i*A100885(n). Then a(n) = Im(m) = Im( sigma(z)/z).

%Y Cf. A100884, A100885, A100889.

%K sign,more

%O 1,3

%A _Yasutoshi Kohmoto_

%E Edited, all values replaced by _R. J. Mathar_, Mar 12 2010

%E a(10)-a(41) from _Amiram Eldar_, Feb 10 2020