218744140

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{10289}}^1$

素因数の和:11361

約数の個数: 24

約数和(自身を含む): 459839520

約数和(自身を除く): 241095380

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315, 10289, 10630, 20578, 21260, 41156, 51445, 102890, 205780, 10937207, 21874414, 43748828, 54686035, 109372070, 218744140]

約数ペア:

[(1, 218744140), (2, 109372070), (4, 54686035), (5, 43748828), (10, 21874414), (20, 10937207), (1063, 205780), (2126, 102890), (4252, 51445), (5315, 41156), (10289, 21260), (10630, 20578)]