20145380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9241}}^1$

素因数の和:9359

約数の個数: 24

約数和(自身を含む): 42698040

約数和(自身を除く): 22552660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9241, 18482, 36964, 46205, 92410, 184820, 1007269, 2014538, 4029076, 5036345, 10072690, 20145380]

約数ペア:

[(1, 20145380), (2, 10072690), (4, 5036345), (5, 4029076), (10, 2014538), (20, 1007269), (109, 184820), (218, 92410), (436, 46205), (545, 36964), (1090, 18482), (2180, 9241)]