90291160

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{2069}}^1$

素因数の和:3171

約数の個数: 32

約数和(自身を含む): 203439600

約数和(自身を除く): 113148440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2069, 2182, 4138, 4364, 5455, 8276, 8728, 10345, 10910, 16552, 20690, 21820, 41380, 43640, 82760, 2257279, 4514558, 9029116, 11286395, 18058232, 22572790, 45145580, 90291160]

約数ペア:

[(1, 90291160), (2, 45145580), (4, 22572790), (5, 18058232), (8, 11286395), (10, 9029116), (20, 4514558), (40, 2257279), (1091, 82760), (2069, 43640), (2182, 41380), (4138, 21820), (4364, 20690), (5455, 16552), (8276, 10910), (8728, 10345)]