20343640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6967}}^1$

素因数の和:7051

約数の個数: 32

約数和(自身を含む): 46406880

約数和(自身を除く): 26063240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6967, 13934, 27868, 34835, 55736, 69670, 139340, 278680, 508591, 1017182, 2034364, 2542955, 4068728, 5085910, 10171820, 20343640]

約数ペア:

[(1, 20343640), (2, 10171820), (4, 5085910), (5, 4068728), (8, 2542955), (10, 2034364), (20, 1017182), (40, 508591), (73, 278680), (146, 139340), (292, 69670), (365, 55736), (584, 34835), (730, 27868), (1460, 13934), (2920, 6967)]