80991340

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{86161}}^1$

素因数の和:86217

約数の個数: 24

約数和(自身を含む): 173702592

約数和(自身を除く): 92711252

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 86161, 172322, 344644, 430805, 861610, 1723220, 4049567, 8099134, 16198268, 20247835, 40495670, 80991340]

約数ペア:

[(1, 80991340), (2, 40495670), (4, 20247835), (5, 16198268), (10, 8099134), (20, 4049567), (47, 1723220), (94, 861610), (188, 430805), (235, 344644), (470, 172322), (940, 86161)]