205322020

素因数分解:

$2^2\times 5^1\times {\mathrm{10266101}}^1$

素因数の和:10266110

約数の個数: 12

約数和(自身を含む): 431176284

約数和(自身を除く): 225854264

約数列:

[1, 2, 4, 5, 10, 20, 10266101, 20532202, 41064404, 51330505, 102661010, 205322020]

約数ペア:

[(1, 205322020), (2, 102661010), (4, 51330505), (5, 41064404), (10, 20532202), (20, 10266101)]