20181427240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1949}}^1\times {\mathrm{19913}}^1$

素因数の和:21886

約数の個数: 64

約数和(自身を含む): 48928698000

約数和(自身を除く): 28747270760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1949, 3898, 7796, 9745, 15592, 19490, 19913, 25337, 38980, 39826, 50674, 77960, 79652, 99565, 101348, 126685, 159304, 199130, 202696, 253370, 258869, 398260, 506740, 517738, 796520, 1013480, 1035476, 1294345, 2070952, 2588690, 5177380, 10354760, 38810437, 77620874, 155241748, 194052185, 310483496, 388104370, 504535681, 776208740, 1009071362, 1552417480, 2018142724, 2522678405, 4036285448, 5045356810, 10090713620, 20181427240]

約数ペア:

[(1, 20181427240), (2, 10090713620), (4, 5045356810), (5, 4036285448), (8, 2522678405), (10, 2018142724), (13, 1552417480), (20, 1009071362), (26, 776208740), (40, 504535681), (52, 388104370), (65, 310483496), (104, 194052185), (130, 155241748), (260, 77620874), (520, 38810437), (1949, 10354760), (3898, 5177380), (7796, 2588690), (9745, 2070952), (15592, 1294345), (19490, 1035476), (19913, 1013480), (25337, 796520), (38980, 517738), (39826, 506740), (50674, 398260), (77960, 258869), (79652, 253370), (99565, 202696), (101348, 199130), (126685, 159304)]