28729130

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{26357}}^1$

素因数の和:26473

約数の個数: 16

約数和(自身を含む): 52188840

約数和(自身を除く): 23459710

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 26357, 52714, 131785, 263570, 2872913, 5745826, 14364565, 28729130]

約数ペア:

[(1, 28729130), (2, 14364565), (5, 5745826), (10, 2872913), (109, 263570), (218, 131785), (545, 52714), (1090, 26357)]