81577525

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 103814784

約数和(自身を除く): 22237259

約数列:

[1, 5, 25, 67, 113, 335, 431, 565, 1675, 2155, 2825, 7571, 10775, 28877, 37855, 48703, 144385, 189275, 243515, 721925, 1217575, 3263101, 16315505, 81577525]

約数ペア:

[(1, 81577525), (5, 16315505), (25, 3263101), (67, 1217575), (113, 721925), (335, 243515), (431, 189275), (565, 144385), (1675, 48703), (2155, 37855), (2825, 28877), (7571, 10775)]