205416140

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{10139}}^1$

素因数の和:11161

約数の個数: 24

約数和(自身を含む): 431842320

約数和(自身を除く): 226426180

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 4052, 5065, 10130, 10139, 20260, 20278, 40556, 50695, 101390, 202780, 10270807, 20541614, 41083228, 51354035, 102708070, 205416140]

約数ペア:

[(1, 205416140), (2, 102708070), (4, 51354035), (5, 41083228), (10, 20541614), (20, 10270807), (1013, 202780), (2026, 101390), (4052, 50695), (5065, 40556), (10130, 20278), (10139, 20260)]