8481380

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2131}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 17908800

約数和(自身を除く): 9427420

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 2131, 3980, 4262, 8524, 10655, 21310, 42620, 424069, 848138, 1696276, 2120345, 4240690, 8481380]

約数ペア:

[(1, 8481380), (2, 4240690), (4, 2120345), (5, 1696276), (10, 848138), (20, 424069), (199, 42620), (398, 21310), (796, 10655), (995, 8524), (1990, 4262), (2131, 3980)]