213060668020

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{20447281}}^1$

素因数の和:20447811

約数の個数: 24

約数和(自身を含む): 448286210568

約数和(自身を除く): 235225542548

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 20447281, 40894562, 81789124, 102236405, 204472810, 408945620, 10653033401, 21306066802, 42612133604, 53265167005, 106530334010, 213060668020]

約数ペア:

[(1, 213060668020), (2, 106530334010), (4, 53265167005), (5, 42612133604), (10, 21306066802), (20, 10653033401), (521, 408945620), (1042, 204472810), (2084, 102236405), (2605, 81789124), (5210, 40894562), (10420, 20447281)]