79886680

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8287}}^1$

素因数の和:8539

約数の個数: 32

約数和(自身を含む): 180512640

約数和(自身を除く): 100625960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 8287, 9640, 16574, 33148, 41435, 66296, 82870, 165740, 331480, 1997167, 3994334, 7988668, 9985835, 15977336, 19971670, 39943340, 79886680]

約数ペア:

[(1, 79886680), (2, 39943340), (4, 19971670), (5, 15977336), (8, 9985835), (10, 7988668), (20, 3994334), (40, 1997167), (241, 331480), (482, 165740), (964, 82870), (1205, 66296), (1928, 41435), (2410, 33148), (4820, 16574), (8287, 9640)]