20217650

素因数分解:

$2^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{3779}}^1$

素因数の和:3898

約数の個数: 24

約数和(自身を含む): 37966320

約数和(自身を除く): 17748670

約数列:

[1, 2, 5, 10, 25, 50, 107, 214, 535, 1070, 2675, 3779, 5350, 7558, 18895, 37790, 94475, 188950, 404353, 808706, 2021765, 4043530, 10108825, 20217650]

約数ペア:

[(1, 20217650), (2, 10108825), (5, 4043530), (10, 2021765), (25, 808706), (50, 404353), (107, 188950), (214, 94475), (535, 37790), (1070, 18895), (2675, 7558), (3779, 5350)]