2979640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 6760080

約数和(自身を除く): 3780440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 457, 652, 815, 914, 1304, 1630, 1828, 2285, 3260, 3656, 4570, 6520, 9140, 18280, 74491, 148982, 297964, 372455, 595928, 744910, 1489820, 2979640]

約数ペア:

[(1, 2979640), (2, 1489820), (4, 744910), (5, 595928), (8, 372455), (10, 297964), (20, 148982), (40, 74491), (163, 18280), (326, 9140), (457, 6520), (652, 4570), (815, 3656), (914, 3260), (1304, 2285), (1630, 1828)]