640111580

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{137363}}^1$

素因数の和:137605

約数の個数: 24

約数和(自身を含む): 1350013392

約数和(自身を除く): 709901812

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4660, 137363, 274726, 549452, 686815, 1373630, 2747260, 32005579, 64011158, 128022316, 160027895, 320055790, 640111580]

約数ペア:

[(1, 640111580), (2, 320055790), (4, 160027895), (5, 128022316), (10, 64011158), (20, 32005579), (233, 2747260), (466, 1373630), (932, 686815), (1165, 549452), (2330, 274726), (4660, 137363)]