2660245

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{263}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 3890304

約数和(自身を除く): 1230059

約数列:

[1, 5, 7, 17, 35, 85, 119, 263, 289, 595, 1315, 1445, 1841, 2023, 4471, 9205, 10115, 22355, 31297, 76007, 156485, 380035, 532049, 2660245]

約数ペア:

[(1, 2660245), (5, 532049), (7, 380035), (17, 156485), (35, 76007), (85, 31297), (119, 22355), (263, 10115), (289, 9205), (595, 4471), (1315, 2023), (1445, 1841)]