A100885 Imaginary part of the Gaussian multiperfect number associated with the real part A100884.

0, 3, 2, 5, 10, 18, 12, 24, 88, 20, 84, 120, 32, 60, 209, 440, 418, 120, 950, 768, 310, 200, 1280, 1152, 2256, 3800, 600, 404, 3840, 1712, 1240, 4680, 5016, 6240, 11400, 12880, 1212, 3720, 20012, 1232, 61440

Offset

1,2

Links

Table of n, a(n) for n=1..41.

Example

a(1) = Im(z= 1) with sigma(z) = 1 and m = 1.
a(2) = Im(z= 1+3i) with sigma(z) = 5+5i and m = 2-i.
a(3) = Im(z= 6+2i) with sigma(z) = -10-10i and m = -1+2i.
a(4) = Im(z= 5+5i) with sigma(z) = 20i and m = 2+2i.
a(5) = Im(z= 10+10i) with sigma(z) = -40+20i and m = -1+3i.
a(6) = Im(z= 12+18i) with sigma(z) = -12+60i and m = 2+2i.
a(9) = Im(z= 28+88i) with sigma(z) = -204-32i and m = -1+2i.

Crossrefs

Cf. A100884, A100889, A100890.

Sequence in context: A128914 A050063 A274761 * A209199 A215328 A107298

Adjacent sequences: A100882 A100883 A100884 * A100886 A100887 A100888

Keyword

nonn,more

Author

Yasutoshi Kohmoto

Extensions

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

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

Status

approved