80949820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578213}}^1$

素因数の和:578229

約数の個数: 24

約数和(自身を含む): 194279904

約数和(自身を除く): 113330084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578213, 1156426, 2312852, 2891065, 4047491, 5782130, 8094982, 11564260, 16189964, 20237455, 40474910, 80949820]

約数ペア:

[(1, 80949820), (2, 40474910), (4, 20237455), (5, 16189964), (7, 11564260), (10, 8094982), (14, 5782130), (20, 4047491), (28, 2891065), (35, 2312852), (70, 1156426), (140, 578213)]