66477680

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4591}}^1$

素因数の和:4785

約数の個数: 40

約数和(自身を含む): 155448384

約数和(自身を除く): 88970704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 4591, 7240, 9182, 14480, 18364, 22955, 36728, 45910, 73456, 91820, 183640, 367280, 830971, 1661942, 3323884, 4154855, 6647768, 8309710, 13295536, 16619420, 33238840, 66477680]

約数ペア:

[(1, 66477680), (2, 33238840), (4, 16619420), (5, 13295536), (8, 8309710), (10, 6647768), (16, 4154855), (20, 3323884), (40, 1661942), (80, 830971), (181, 367280), (362, 183640), (724, 91820), (905, 73456), (1448, 45910), (1810, 36728), (2896, 22955), (3620, 18364), (4591, 14480), (7240, 9182)]