257900530

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{73897}}^1$

素因数の和:74253

約数の個数: 16

約数和(自身を含む): 465557400

約数和(自身を除く): 207656870

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 73897, 147794, 369485, 738970, 25790053, 51580106, 128950265, 257900530]

約数ペア:

[(1, 257900530), (2, 128950265), (5, 51580106), (10, 25790053), (349, 738970), (698, 369485), (1745, 147794), (3490, 73897)]