28727180

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{4001}}^1$

素因数の和:4369

約数の個数: 24

約数和(自身を含む): 60510240

約数和(自身を除く): 31783060

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 4001, 7180, 8002, 16004, 20005, 40010, 80020, 1436359, 2872718, 5745436, 7181795, 14363590, 28727180]

約数ペア:

[(1, 28727180), (2, 14363590), (4, 7181795), (5, 5745436), (10, 2872718), (20, 1436359), (359, 80020), (718, 40010), (1436, 20005), (1795, 16004), (3590, 8002), (4001, 7180)]