28782020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84653}}^1$

素因数の和:84679

約数の個数: 24

約数和(自身を含む): 63998424

約数和(自身を除く): 35216404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 84653, 169306, 338612, 423265, 846530, 1439101, 1693060, 2878202, 5756404, 7195505, 14391010, 28782020]

約数ペア:

[(1, 28782020), (2, 14391010), (4, 7195505), (5, 5756404), (10, 2878202), (17, 1693060), (20, 1439101), (34, 846530), (68, 423265), (85, 338612), (170, 169306), (340, 84653)]