256312730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{21557}}^1$

素因数の和:21634

約数の個数: 32

約数和(自身を含む): 488935440

約数和(自身を除く): 232622710

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 2378, 5945, 11890, 21557, 43114, 107785, 215570, 625153, 883837, 1250306, 1767674, 3125765, 4419185, 6251530, 8838370, 25631273, 51262546, 128156365, 256312730]

約数ペア:

[(1, 256312730), (2, 128156365), (5, 51262546), (10, 25631273), (29, 8838370), (41, 6251530), (58, 4419185), (82, 3125765), (145, 1767674), (205, 1250306), (290, 883837), (410, 625153), (1189, 215570), (2378, 107785), (5945, 43114), (11890, 21557)]