81666895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{2851}}^1$

素因数の和:3210

約数の個数: 16

約数和(自身を含む): 104109408

約数和(自身を除く): 22442513

約数列:

[1, 5, 17, 85, 337, 1685, 2851, 5729, 14255, 28645, 48467, 242335, 960787, 4803935, 16333379, 81666895]

約数ペア:

[(1, 81666895), (5, 16333379), (17, 4803935), (85, 960787), (337, 242335), (1685, 48467), (2851, 28645), (5729, 14255)]