20768680

素因数分解:

$2^3\times 5^1\times {\mathrm{519217}}^1$

素因数の和:519228

約数の個数: 16

約数和(自身を含む): 46729620

約数和(自身を除く): 25960940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 519217, 1038434, 2076868, 2596085, 4153736, 5192170, 10384340, 20768680]

約数ペア:

[(1, 20768680), (2, 10384340), (4, 5192170), (5, 4153736), (8, 2596085), (10, 2076868), (20, 1038434), (40, 519217)]