1440807920

素因数分解:

$2^4\times 5^1\times {\mathrm{18010099}}^1$

素因数の和:18010112

約数の個数: 20

約数和(自身を含む): 3349878600

約数和(自身を除く): 1909070680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 18010099, 36020198, 72040396, 90050495, 144080792, 180100990, 288161584, 360201980, 720403960, 1440807920]

約数ペア:

[(1, 1440807920), (2, 720403960), (4, 360201980), (5, 288161584), (8, 180100990), (10, 144080792), (16, 90050495), (20, 72040396), (40, 36020198), (80, 18010099)]