208403905

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1\times {\mathrm{1009}}^1$

素因数の和:1524

約数の個数: 16

約数和(自身を含む): 253429200

約数和(自身を除く): 45025295

約数列:

[1, 5, 101, 409, 505, 1009, 2045, 5045, 41309, 101909, 206545, 412681, 509545, 2063405, 41680781, 208403905]

約数ペア:

[(1, 208403905), (5, 41680781), (101, 2063405), (409, 509545), (505, 412681), (1009, 206545), (2045, 101909), (5045, 41309)]