28865380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13241}}^1$

素因数の和:13359

約数の個数: 24

約数和(自身を含む): 61178040

約数和(自身を除く): 32312660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 13241, 26482, 52964, 66205, 132410, 264820, 1443269, 2886538, 5773076, 7216345, 14432690, 28865380]

約数ペア:

[(1, 28865380), (2, 14432690), (4, 7216345), (5, 5773076), (10, 2886538), (20, 1443269), (109, 264820), (218, 132410), (436, 66205), (545, 52964), (1090, 26482), (2180, 13241)]