8163978980

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2051251}}^1$

素因数の和:2051459

約数の個数: 24

約数和(自身を含む): 17230516800

約数和(自身を除く): 9066537820

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 2051251, 4102502, 8205004, 10256255, 20512510, 41025020, 408198949, 816397898, 1632795796, 2040994745, 4081989490, 8163978980]

約数ペア:

[(1, 8163978980), (2, 4081989490), (4, 2040994745), (5, 1632795796), (10, 816397898), (20, 408198949), (199, 41025020), (398, 20512510), (796, 10256255), (995, 8205004), (1990, 4102502), (3980, 2051251)]