20650025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 28414848

約数和(自身を除く): 7764823

約数列:

[1, 5, 11, 25, 55, 61, 275, 305, 671, 1231, 1525, 3355, 6155, 13541, 16775, 30775, 67705, 75091, 338525, 375455, 826001, 1877275, 4130005, 20650025]

約数ペア:

[(1, 20650025), (5, 4130005), (11, 1877275), (25, 826001), (55, 375455), (61, 338525), (275, 75091), (305, 67705), (671, 30775), (1231, 16775), (1525, 13541), (3355, 6155)]