A100890 - OEIS

A100890

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

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

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OFFSET

1,3

COMMENTS

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

LINKS

CROSSREFS

KEYWORD

sign,more

AUTHOR

EXTENSIONS

Edited, all values replaced by R. J. Mathar, Mar 12 2010

a(10)-a(41) from Amiram Eldar, Feb 10 2020

STATUS

approved