19874840

素因数分解:

$2^3\times 5^1\times {\mathrm{496871}}^1$

素因数の和:496882

約数の個数: 16

約数和(自身を含む): 44718480

約数和(自身を除く): 24843640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496871, 993742, 1987484, 2484355, 3974968, 4968710, 9937420, 19874840]

約数ペア:

[(1, 19874840), (2, 9937420), (4, 4968710), (5, 3974968), (8, 2484355), (10, 1987484), (20, 993742), (40, 496871)]