13020080

素因数分解:

$2^4\times 5^1\times {\mathrm{162751}}^1$

素因数の和:162764

約数の個数: 20

約数和(自身を含む): 30271872

約数和(自身を除く): 17251792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 162751, 325502, 651004, 813755, 1302008, 1627510, 2604016, 3255020, 6510040, 13020080]

約数ペア:

[(1, 13020080), (2, 6510040), (4, 3255020), (5, 2604016), (8, 1627510), (10, 1302008), (16, 813755), (20, 651004), (40, 325502), (80, 162751)]