20383640

素因数分解:

$2^3\times 5^1\times {\mathrm{509591}}^1$

素因数の和:509602

約数の個数: 16

約数和(自身を含む): 45863280

約数和(自身を除く): 25479640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509591, 1019182, 2038364, 2547955, 4076728, 5095910, 10191820, 20383640]

約数ペア:

[(1, 20383640), (2, 10191820), (4, 5095910), (5, 4076728), (8, 2547955), (10, 2038364), (20, 1019182), (40, 509591)]