18908870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{65203}}^1$

素因数の和:65239

約数の個数: 16

約数和(自身を含む): 35210160

約数和(自身を除く): 16301290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 65203, 130406, 326015, 652030, 1890887, 3781774, 9454435, 18908870]

約数ペア:

[(1, 18908870), (2, 9454435), (5, 3781774), (10, 1890887), (29, 652030), (58, 326015), (145, 130406), (290, 65203)]