90392020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{105107}}^1$

素因数の和:105159

約数の個数: 24

約数和(自身を含む): 194239584

約数和(自身を除く): 103847564

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 105107, 210214, 420428, 525535, 1051070, 2102140, 4519601, 9039202, 18078404, 22598005, 45196010, 90392020]

約数ペア:

[(1, 90392020), (2, 45196010), (4, 22598005), (5, 18078404), (10, 9039202), (20, 4519601), (43, 2102140), (86, 1051070), (172, 525535), (215, 420428), (430, 210214), (860, 105107)]