28716905

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19081}}^1$

素因数の和:19136

約数の個数: 16

約数和(自身を含む): 40301184

約数和(自身を除く): 11584279

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 19081, 95405, 133567, 667835, 820483, 4102415, 5743381, 28716905]

約数ペア:

[(1, 28716905), (5, 5743381), (7, 4102415), (35, 820483), (43, 667835), (215, 133567), (301, 95405), (1505, 19081)]