20749895

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{797}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 4990393

約数列:

[1, 5, 41, 127, 205, 635, 797, 3985, 5207, 26035, 32677, 101219, 163385, 506095, 4149979, 20749895]

約数ペア:

[(1, 20749895), (5, 4149979), (41, 506095), (127, 163385), (205, 101219), (635, 32677), (797, 26035), (3985, 5207)]