99787640

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{6949}}^1$

素因数の和:7319

約数の個数: 32

約数和(自身を含む): 225180000

約数和(自身を除く): 125392360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 6949, 7180, 13898, 14360, 27796, 34745, 55592, 69490, 138980, 277960, 2494691, 4989382, 9978764, 12473455, 19957528, 24946910, 49893820, 99787640]

約数ペア:

[(1, 99787640), (2, 49893820), (4, 24946910), (5, 19957528), (8, 12473455), (10, 9978764), (20, 4989382), (40, 2494691), (359, 277960), (718, 138980), (1436, 69490), (1795, 55592), (2872, 34745), (3590, 27796), (6949, 14360), (7180, 13898)]