18431240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15889}}^1$

素因数の和:15929

約数の個数: 32

約数和(自身を含む): 42903000

約数和(自身を除く): 24471760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15889, 31778, 63556, 79445, 127112, 158890, 317780, 460781, 635560, 921562, 1843124, 2303905, 3686248, 4607810, 9215620, 18431240]

約数ペア:

[(1, 18431240), (2, 9215620), (4, 4607810), (5, 3686248), (8, 2303905), (10, 1843124), (20, 921562), (29, 635560), (40, 460781), (58, 317780), (116, 158890), (145, 127112), (232, 79445), (290, 63556), (580, 31778), (1160, 15889)]