18747620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9281}}^1$

素因数の和:9391

約数の個数: 24

約数和(自身を含む): 39764088

約数和(自身を除く): 21016468

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9281, 18562, 37124, 46405, 92810, 185620, 937381, 1874762, 3749524, 4686905, 9373810, 18747620]

約数ペア:

[(1, 18747620), (2, 9373810), (4, 4686905), (5, 3749524), (10, 1874762), (20, 937381), (101, 185620), (202, 92810), (404, 46405), (505, 37124), (1010, 18562), (2020, 9281)]