28455310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218887}}^1$

素因数の和:218907

約数の個数: 16

約数和(自身を含む): 55159776

約数和(自身を除く): 26704466

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218887, 437774, 1094435, 2188870, 2845531, 5691062, 14227655, 28455310]

約数ペア:

[(1, 28455310), (2, 14227655), (5, 5691062), (10, 2845531), (13, 2188870), (26, 1094435), (65, 437774), (130, 218887)]