256632020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{442469}}^1$

素因数の和:442507

約数の個数: 24

約数和(自身を含む): 557512200

約数和(自身を除く): 300880180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 442469, 884938, 1769876, 2212345, 4424690, 8849380, 12831601, 25663202, 51326404, 64158005, 128316010, 256632020]

約数ペア:

[(1, 256632020), (2, 128316010), (4, 64158005), (5, 51326404), (10, 25663202), (20, 12831601), (29, 8849380), (58, 4424690), (116, 2212345), (145, 1769876), (290, 884938), (580, 442469)]