20054080

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2207

約数の個数: 56

約数和(自身を含む): 49423320

約数和(自身を除く): 29369240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2161, 2320, 4322, 4640, 8644, 9280, 10805, 17288, 21610, 34576, 43220, 62669, 69152, 86440, 125338, 138304, 172880, 250676, 313345, 345760, 501352, 626690, 691520, 1002704, 1253380, 2005408, 2506760, 4010816, 5013520, 10027040, 20054080]

約数ペア:

[(1, 20054080), (2, 10027040), (4, 5013520), (5, 4010816), (8, 2506760), (10, 2005408), (16, 1253380), (20, 1002704), (29, 691520), (32, 626690), (40, 501352), (58, 345760), (64, 313345), (80, 250676), (116, 172880), (145, 138304), (160, 125338), (232, 86440), (290, 69152), (320, 62669), (464, 43220), (580, 34576), (928, 21610), (1160, 17288), (1856, 10805), (2161, 9280), (2320, 8644), (4322, 4640)]