28717130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220901}}^1$

素因数の和:220921

約数の個数: 16

約数和(自身を含む): 55667304

約数和(自身を除く): 26950174

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 220901, 441802, 1104505, 2209010, 2871713, 5743426, 14358565, 28717130]

約数ペア:

[(1, 28717130), (2, 14358565), (5, 5743426), (10, 2871713), (13, 2209010), (26, 1104505), (65, 441802), (130, 220901)]