64853620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249437}}^1$

素因数の和:249459

約数の個数: 24

約数和(自身を含む): 146669544

約数和(自身を除く): 81815924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 249437, 498874, 997748, 1247185, 2494370, 3242681, 4988740, 6485362, 12970724, 16213405, 32426810, 64853620]

約数ペア:

[(1, 64853620), (2, 32426810), (4, 16213405), (5, 12970724), (10, 6485362), (13, 4988740), (20, 3242681), (26, 2494370), (52, 1247185), (65, 997748), (130, 498874), (260, 249437)]