89801920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21587}}^1$

素因数の和:21617

約数の個数: 56

約数和(自身を含む): 230300784

約数和(自身を除く): 140498864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 21587, 43174, 86348, 107935, 172696, 215870, 280631, 345392, 431740, 561262, 690784, 863480, 1122524, 1381568, 1403155, 1726960, 2245048, 2806310, 3453920, 4490096, 5612620, 6907840, 8980192, 11225240, 17960384, 22450480, 44900960, 89801920]

約数ペア:

[(1, 89801920), (2, 44900960), (4, 22450480), (5, 17960384), (8, 11225240), (10, 8980192), (13, 6907840), (16, 5612620), (20, 4490096), (26, 3453920), (32, 2806310), (40, 2245048), (52, 1726960), (64, 1403155), (65, 1381568), (80, 1122524), (104, 863480), (130, 690784), (160, 561262), (208, 431740), (260, 345392), (320, 280631), (416, 215870), (520, 172696), (832, 107935), (1040, 86348), (2080, 43174), (4160, 21587)]