16820080

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3967}}^1$

素因数の和:4033

約数の個数: 40

約数和(自身を含む): 39854592

約数和(自身を除く): 23034512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 3967, 4240, 7934, 15868, 19835, 31736, 39670, 63472, 79340, 158680, 210251, 317360, 420502, 841004, 1051255, 1682008, 2102510, 3364016, 4205020, 8410040, 16820080]

約数ペア:

[(1, 16820080), (2, 8410040), (4, 4205020), (5, 3364016), (8, 2102510), (10, 1682008), (16, 1051255), (20, 841004), (40, 420502), (53, 317360), (80, 210251), (106, 158680), (212, 79340), (265, 63472), (424, 39670), (530, 31736), (848, 19835), (1060, 15868), (2120, 7934), (3967, 4240)]