89207680

素因数分解:

$2^7\times 5^1\times {\mathrm{139387}}^1$

素因数の和:139406

約数の個数: 32

約数和(自身を含む): 213263640

約数和(自身を除く): 124055960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 139387, 278774, 557548, 696935, 1115096, 1393870, 2230192, 2787740, 4460384, 5575480, 8920768, 11150960, 17841536, 22301920, 44603840, 89207680]

約数ペア:

[(1, 89207680), (2, 44603840), (4, 22301920), (5, 17841536), (8, 11150960), (10, 8920768), (16, 5575480), (20, 4460384), (32, 2787740), (40, 2230192), (64, 1393870), (80, 1115096), (128, 696935), (160, 557548), (320, 278774), (640, 139387)]