20877400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2284

約数の個数: 48

約数和(自身を含む): 49595040

約数和(自身を除く): 28717640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 188, 200, 235, 376, 470, 940, 1175, 1880, 2221, 2350, 4442, 4700, 8884, 9400, 11105, 17768, 22210, 44420, 55525, 88840, 104387, 111050, 208774, 222100, 417548, 444200, 521935, 835096, 1043870, 2087740, 2609675, 4175480, 5219350, 10438700, 20877400]

約数ペア:

[(1, 20877400), (2, 10438700), (4, 5219350), (5, 4175480), (8, 2609675), (10, 2087740), (20, 1043870), (25, 835096), (40, 521935), (47, 444200), (50, 417548), (94, 222100), (100, 208774), (188, 111050), (200, 104387), (235, 88840), (376, 55525), (470, 44420), (940, 22210), (1175, 17768), (1880, 11105), (2221, 9400), (2350, 8884), (4442, 4700)]