222700580

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{26449}}^1$

素因数の和:26879

約数の個数: 24

約数和(自身を含む): 468799800

約数和(自身を除く): 246099220

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 26449, 52898, 105796, 132245, 264490, 528980, 11135029, 22270058, 44540116, 55675145, 111350290, 222700580]

約数ペア:

[(1, 222700580), (2, 111350290), (4, 55675145), (5, 44540116), (10, 22270058), (20, 11135029), (421, 528980), (842, 264490), (1684, 132245), (2105, 105796), (4210, 52898), (8420, 26449)]