697220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 1487808

約数和(自身を除く): 790588

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 491, 710, 982, 1420, 1964, 2455, 4910, 9820, 34861, 69722, 139444, 174305, 348610, 697220]

約数ペア:

[(1, 697220), (2, 348610), (4, 174305), (5, 139444), (10, 69722), (20, 34861), (71, 9820), (142, 4910), (284, 2455), (355, 1964), (491, 1420), (710, 982)]