51377360

素因数分解:

$2^4\times 5^1\times {\mathrm{642217}}^1$

素因数の和:642230

約数の個数: 20

約数和(自身を含む): 119452548

約数和(自身を除く): 68075188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 642217, 1284434, 2568868, 3211085, 5137736, 6422170, 10275472, 12844340, 25688680, 51377360]

約数ペア:

[(1, 51377360), (2, 25688680), (4, 12844340), (5, 10275472), (8, 6422170), (10, 5137736), (16, 3211085), (20, 2568868), (40, 1284434), (80, 642217)]