1631940080

素因数分解:

$2^4\times 5^1\times {\mathrm{20399251}}^1$

素因数の和:20399264

約数の個数: 20

約数和(自身を含む): 3794260872

約数和(自身を除く): 2162320792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20399251, 40798502, 81597004, 101996255, 163194008, 203992510, 326388016, 407985020, 815970040, 1631940080]

約数ペア:

[(1, 1631940080), (2, 815970040), (4, 407985020), (5, 326388016), (8, 203992510), (10, 163194008), (16, 101996255), (20, 81597004), (40, 40798502), (80, 20399251)]