18724180

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1447}}^1$

素因数の和:2103

約数の個数: 24

約数和(自身を含む): 39408768

約数和(自身を除く): 20684588

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1447, 2588, 2894, 3235, 5788, 6470, 7235, 12940, 14470, 28940, 936209, 1872418, 3744836, 4681045, 9362090, 18724180]

約数ペア:

[(1, 18724180), (2, 9362090), (4, 4681045), (5, 3744836), (10, 1872418), (20, 936209), (647, 28940), (1294, 14470), (1447, 12940), (2588, 7235), (2894, 6470), (3235, 5788)]