257387180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{443771}}^1$

素因数の和:443809

約数の個数: 24

約数和(自身を含む): 559152720

約数和(自身を除く): 301765540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 443771, 887542, 1775084, 2218855, 4437710, 8875420, 12869359, 25738718, 51477436, 64346795, 128693590, 257387180]

約数ペア:

[(1, 257387180), (2, 128693590), (4, 64346795), (5, 51477436), (10, 25738718), (20, 12869359), (29, 8875420), (58, 4437710), (116, 2218855), (145, 1775084), (290, 887542), (580, 443771)]