387510980

素因数分解:

$2^2\times 5^1\times {\mathrm{19375549}}^1$

素因数の和:19375558

約数の個数: 12

約数和(自身を含む): 813773100

約数和(自身を除く): 426262120

約数列:

[1, 2, 4, 5, 10, 20, 19375549, 38751098, 77502196, 96877745, 193755490, 387510980]

約数ペア:

[(1, 387510980), (2, 193755490), (4, 96877745), (5, 77502196), (10, 38751098), (20, 19375549)]