18185660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47857}}^1$

素因数の和:47885

約数の個数: 24

約数和(自身を含む): 40200720

約数和(自身を除く): 22015060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47857, 95714, 191428, 239285, 478570, 909283, 957140, 1818566, 3637132, 4546415, 9092830, 18185660]

約数ペア:

[(1, 18185660), (2, 9092830), (4, 4546415), (5, 3637132), (10, 1818566), (19, 957140), (20, 909283), (38, 478570), (76, 239285), (95, 191428), (190, 95714), (380, 47857)]