79687021520

素因数分解:

$2^4\times 5^1\times {\mathrm{996087769}}^1$

素因数の和:996087782

約数の個数: 20

約数和(自身を含む): 185272325220

約数和(自身を除く): 105585303700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 996087769, 1992175538, 3984351076, 4980438845, 7968702152, 9960877690, 15937404304, 19921755380, 39843510760, 79687021520]

約数ペア:

[(1, 79687021520), (2, 39843510760), (4, 19921755380), (5, 15937404304), (8, 9960877690), (10, 7968702152), (16, 4980438845), (20, 3984351076), (40, 1992175538), (80, 996087769)]