80986280

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1583}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 182476800

約数和(自身を除く): 101490520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 1583, 2558, 3166, 5116, 6332, 6395, 7915, 10232, 12664, 12790, 15830, 25580, 31660, 51160, 63320, 2024657, 4049314, 8098628, 10123285, 16197256, 20246570, 40493140, 80986280]

約数ペア:

[(1, 80986280), (2, 40493140), (4, 20246570), (5, 16197256), (8, 10123285), (10, 8098628), (20, 4049314), (40, 2024657), (1279, 63320), (1583, 51160), (2558, 31660), (3166, 25580), (5116, 15830), (6332, 12790), (6395, 12664), (7915, 10232)]