81880496740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1880581}}^1$

素因数の和:1880908

約数の個数: 48

約数和(自身を含む): 197145172224

約数和(自身を除く): 115264675484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 622, 1244, 1555, 2177, 3110, 4354, 6220, 8708, 10885, 21770, 43540, 1880581, 3761162, 7522324, 9402905, 13164067, 18805810, 26328134, 37611620, 52656268, 65820335, 131640670, 263281340, 584860691, 1169721382, 2339442764, 2924303455, 4094024837, 5848606910, 8188049674, 11697213820, 16376099348, 20470124185, 40940248370, 81880496740]

約数ペア:

[(1, 81880496740), (2, 40940248370), (4, 20470124185), (5, 16376099348), (7, 11697213820), (10, 8188049674), (14, 5848606910), (20, 4094024837), (28, 2924303455), (35, 2339442764), (70, 1169721382), (140, 584860691), (311, 263281340), (622, 131640670), (1244, 65820335), (1555, 52656268), (2177, 37611620), (3110, 26328134), (4354, 18805810), (6220, 13164067), (8708, 9402905), (10885, 7522324), (21770, 3761162), (43540, 1880581)]