90390680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2687}}^1$

素因数の和:2756

約数の個数: 48

約数和(自身を含む): 210712320

約数和(自身を除く): 120321640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 841, 1160, 1682, 2687, 3364, 4205, 5374, 6728, 8410, 10748, 13435, 16820, 21496, 26870, 33640, 53740, 77923, 107480, 155846, 311692, 389615, 623384, 779230, 1558460, 2259767, 3116920, 4519534, 9039068, 11298835, 18078136, 22597670, 45195340, 90390680]

約数ペア:

[(1, 90390680), (2, 45195340), (4, 22597670), (5, 18078136), (8, 11298835), (10, 9039068), (20, 4519534), (29, 3116920), (40, 2259767), (58, 1558460), (116, 779230), (145, 623384), (232, 389615), (290, 311692), (580, 155846), (841, 107480), (1160, 77923), (1682, 53740), (2687, 33640), (3364, 26870), (4205, 21496), (5374, 16820), (6728, 13435), (8410, 10748)]