720631570

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1\times {\mathrm{881}}^1$

素因数の和:1566

約数の個数: 32

約数和(自身を含む): 1309388976

約数和(自身を除く): 588757406

約数列:

[1, 2, 5, 10, 157, 314, 521, 785, 881, 1042, 1570, 1762, 2605, 4405, 5210, 8810, 81797, 138317, 163594, 276634, 408985, 459001, 691585, 817970, 918002, 1383170, 2295005, 4590010, 72063157, 144126314, 360315785, 720631570]

約数ペア:

[(1, 720631570), (2, 360315785), (5, 144126314), (10, 72063157), (157, 4590010), (314, 2295005), (521, 1383170), (785, 918002), (881, 817970), (1042, 691585), (1570, 459001), (1762, 408985), (2605, 276634), (4405, 163594), (5210, 138317), (8810, 81797)]