39648680

素因数分解:

$2^3\times 5^1\times {\mathrm{991217}}^1$

素因数の和:991228

約数の個数: 16

約数和(自身を含む): 89209620

約数和(自身を除く): 49560940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991217, 1982434, 3964868, 4956085, 7929736, 9912170, 19824340, 39648680]

約数ペア:

[(1, 39648680), (2, 19824340), (4, 9912170), (5, 7929736), (8, 4956085), (10, 3964868), (20, 1982434), (40, 991217)]