20556650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14177}}^1$

素因数の和:14218

約数の個数: 24

約数和(自身を含む): 39556620

約数和(自身を除く): 18999970

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14177, 28354, 70885, 141770, 354425, 411133, 708850, 822266, 2055665, 4111330, 10278325, 20556650]

約数ペア:

[(1, 20556650), (2, 10278325), (5, 4111330), (10, 2055665), (25, 822266), (29, 708850), (50, 411133), (58, 354425), (145, 141770), (290, 70885), (725, 28354), (1450, 14177)]