20723180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10259}}^1$

素因数の和:10369

約数の個数: 24

約数和(自身を含む): 43953840

約数和(自身を除く): 23230660

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10259, 20518, 41036, 51295, 102590, 205180, 1036159, 2072318, 4144636, 5180795, 10361590, 20723180]

約数ペア:

[(1, 20723180), (2, 10361590), (4, 5180795), (5, 4144636), (10, 2072318), (20, 1036159), (101, 205180), (202, 102590), (404, 51295), (505, 41036), (1010, 20518), (2020, 10259)]