28715785

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{20011}}^1$

素因数の和:20064

約数の個数: 16

約数和(自身を含む): 40344192

約数和(自身を除く): 11628407

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 20011, 100055, 140077, 700385, 820451, 4102255, 5743157, 28715785]

約数ペア:

[(1, 28715785), (5, 5743157), (7, 4102255), (35, 820451), (41, 700385), (205, 140077), (287, 100055), (1435, 20011)]