18545620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9181}}^1$

素因数の和:9291

約数の個数: 24

約数和(自身を含む): 39335688

約数和(自身を除く): 20790068

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9181, 18362, 36724, 45905, 91810, 183620, 927281, 1854562, 3709124, 4636405, 9272810, 18545620]

約数ペア:

[(1, 18545620), (2, 9272810), (4, 4636405), (5, 3709124), (10, 1854562), (20, 927281), (101, 183620), (202, 91810), (404, 45905), (505, 36724), (1010, 18362), (2020, 9181)]