20045660

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18911}}^1$

素因数の和:18973

約数の個数: 24

約数和(自身を含む): 42892416

約数和(自身を除く): 22846756

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18911, 37822, 75644, 94555, 189110, 378220, 1002283, 2004566, 4009132, 5011415, 10022830, 20045660]

約数ペア:

[(1, 20045660), (2, 10022830), (4, 5011415), (5, 4009132), (10, 2004566), (20, 1002283), (53, 378220), (106, 189110), (212, 94555), (265, 75644), (530, 37822), (1060, 18911)]