18903740

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1201}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 39781392

約数和(自身を除く): 20877652

約数列:

[1, 2, 4, 5, 10, 20, 787, 1201, 1574, 2402, 3148, 3935, 4804, 6005, 7870, 12010, 15740, 24020, 945187, 1890374, 3780748, 4725935, 9451870, 18903740]

約数ペア:

[(1, 18903740), (2, 9451870), (4, 4725935), (5, 3780748), (10, 1890374), (20, 945187), (787, 24020), (1201, 15740), (1574, 12010), (2402, 7870), (3148, 6005), (3935, 4804)]