login
A100890
Imaginary part of multiplier m of the Gaussian multiperfect number associated with the real part A100889(n).
8
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, 4, 3, 3, 0, 1, 0, 0, 4, 0, 4, -4, 3, -1
OFFSET
1,3
COMMENTS
Let the Gaussian integer z = A100884(n)+i*A100885(n). Then a(n) = Im(m) = Im( sigma(z)/z).
CROSSREFS
KEYWORD
sign,more
EXTENSIONS
Edited, all values replaced by R. J. Mathar, Mar 12 2010
a(10)-a(41) from Amiram Eldar, Feb 10 2020
STATUS
approved