81625340

素因数分解:

$2^2\times 5^1\times {\mathrm{1873}}^1\times {\mathrm{2179}}^1$

素因数の和:4061

約数の個数: 24

約数和(自身を含む): 171583440

約数和(自身を除く): 89958100

約数列:

[1, 2, 4, 5, 10, 20, 1873, 2179, 3746, 4358, 7492, 8716, 9365, 10895, 18730, 21790, 37460, 43580, 4081267, 8162534, 16325068, 20406335, 40812670, 81625340]

約数ペア:

[(1, 81625340), (2, 40812670), (4, 20406335), (5, 16325068), (10, 8162534), (20, 4081267), (1873, 43580), (2179, 37460), (3746, 21790), (4358, 18730), (7492, 10895), (8716, 9365)]