447777220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{20983}}^1$

素因数の和:21100

約数の個数: 48

約数和(自身を含む): 1036441728

約数和(自身を除く): 588664508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 4268, 5335, 10670, 20983, 21340, 41966, 83932, 104915, 209830, 230813, 419660, 461626, 923252, 1154065, 2035351, 2308130, 4070702, 4616260, 8141404, 10176755, 20353510, 22388861, 40707020, 44777722, 89555444, 111944305, 223888610, 447777220]

約数ペア:

[(1, 447777220), (2, 223888610), (4, 111944305), (5, 89555444), (10, 44777722), (11, 40707020), (20, 22388861), (22, 20353510), (44, 10176755), (55, 8141404), (97, 4616260), (110, 4070702), (194, 2308130), (220, 2035351), (388, 1154065), (485, 923252), (970, 461626), (1067, 419660), (1940, 230813), (2134, 209830), (4268, 104915), (5335, 83932), (10670, 41966), (20983, 21340)]