258400730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127291}}^1$

素因数の和:127334

約数の個数: 32

約数和(自身を含む): 549901440

約数和(自身を除く): 291500710

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 127291, 254582, 636455, 891037, 1272910, 1782074, 3691439, 4455185, 7382878, 8910370, 18457195, 25840073, 36914390, 51680146, 129200365, 258400730]

約数ペア:

[(1, 258400730), (2, 129200365), (5, 51680146), (7, 36914390), (10, 25840073), (14, 18457195), (29, 8910370), (35, 7382878), (58, 4455185), (70, 3691439), (145, 1782074), (203, 1272910), (290, 891037), (406, 636455), (1015, 254582), (2030, 127291)]