890604560

素因数分解:

$2^4\times 5^1\times {\mathrm{11132557}}^1$

素因数の和:11132570

約数の個数: 20

約数和(自身を含む): 2070655788

約数和(自身を除く): 1180051228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11132557, 22265114, 44530228, 55662785, 89060456, 111325570, 178120912, 222651140, 445302280, 890604560]

約数ペア:

[(1, 890604560), (2, 445302280), (4, 222651140), (5, 178120912), (8, 111325570), (10, 89060456), (16, 55662785), (20, 44530228), (40, 22265114), (80, 11132557)]