3980724940

素因数分解:

$2^2\times 5^1\times {\mathrm{199036247}}^1$

素因数の和:199036256

約数の個数: 12

約数和(自身を含む): 8359522416

約数和(自身を除く): 4378797476

約数列:

[1, 2, 4, 5, 10, 20, 199036247, 398072494, 796144988, 995181235, 1990362470, 3980724940]

約数ペア:

[(1, 3980724940), (2, 1990362470), (4, 995181235), (5, 796144988), (10, 398072494), (20, 199036247)]