28782980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14249}}^1$

素因数の和:14359

約数の個数: 24

約数和(自身を含む): 61047000

約数和(自身を除く): 32264020

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 14249, 28498, 56996, 71245, 142490, 284980, 1439149, 2878298, 5756596, 7195745, 14391490, 28782980]

約数ペア:

[(1, 28782980), (2, 14391490), (4, 7195745), (5, 5756596), (10, 2878298), (20, 1439149), (101, 284980), (202, 142490), (404, 71245), (505, 56996), (1010, 28498), (2020, 14249)]