18715691920

素因数分解:

$2^4\times 5^1\times {\mathrm{233946149}}^1$

素因数の和:233946162

約数の個数: 20

約数和(自身を含む): 43513983900

約数和(自身を除く): 24798291980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233946149, 467892298, 935784596, 1169730745, 1871569192, 2339461490, 3743138384, 4678922980, 9357845960, 18715691920]

約数ペア:

[(1, 18715691920), (2, 9357845960), (4, 4678922980), (5, 3743138384), (8, 2339461490), (10, 1871569192), (16, 1169730745), (20, 935784596), (40, 467892298), (80, 233946149)]