89587840

素因数分解:

$2^7\times 5^1\times {\mathrm{139981}}^1$

素因数の和:140000

約数の個数: 32

約数和(自身を含む): 214172460

約数和(自身を除く): 124584620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 139981, 279962, 559924, 699905, 1119848, 1399810, 2239696, 2799620, 4479392, 5599240, 8958784, 11198480, 17917568, 22396960, 44793920, 89587840]

約数ペア:

[(1, 89587840), (2, 44793920), (4, 22396960), (5, 17917568), (8, 11198480), (10, 8958784), (16, 5599240), (20, 4479392), (32, 2799620), (40, 2239696), (64, 1399810), (80, 1119848), (128, 699905), (160, 559924), (320, 279962), (640, 139981)]