20834440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47351}}^1$

素因数の和:47373

約数の個数: 32

約数和(自身を含む): 51140160

約数和(自身を除く): 30305720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47351, 94702, 189404, 236755, 378808, 473510, 520861, 947020, 1041722, 1894040, 2083444, 2604305, 4166888, 5208610, 10417220, 20834440]

約数ペア:

[(1, 20834440), (2, 10417220), (4, 5208610), (5, 4166888), (8, 2604305), (10, 2083444), (11, 1894040), (20, 1041722), (22, 947020), (40, 520861), (44, 473510), (55, 378808), (88, 236755), (110, 189404), (220, 94702), (440, 47351)]