80957620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51239}}^1$

素因数の和:51327

約数の個数: 24

約数和(自身を含む): 172166400

約数和(自身を除く): 91208780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 51239, 102478, 204956, 256195, 512390, 1024780, 4047881, 8095762, 16191524, 20239405, 40478810, 80957620]

約数ペア:

[(1, 80957620), (2, 40478810), (4, 20239405), (5, 16191524), (10, 8095762), (20, 4047881), (79, 1024780), (158, 512390), (316, 256195), (395, 204956), (790, 102478), (1580, 51239)]