20620160

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 56181600

約数和(自身を除く): 35561440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 101, 110, 116, 128, 145, 160, 176, 202, 220, 232, 290, 319, 320, 352, 404, 440, 464, 505, 580, 638, 640, 704, 808, 880, 928, 1010, 1111, 1160, 1276, 1408, 1595, 1616, 1760, 1856, 2020, 2222, 2320, 2552, 2929, 3190, 3232, 3520, 3712, 4040, 4444, 4640, 5104, 5555, 5858, 6380, 6464, 7040, 8080, 8888, 9280, 10208, 11110, 11716, 12760, 12928, 14645, 16160, 17776, 18560, 20416, 22220, 23432, 25520, 29290, 32219, 32320, 35552, 40832, 44440, 46864, 51040, 58580, 64438, 64640, 71104, 88880, 93728, 102080, 117160, 128876, 142208, 161095, 177760, 187456, 204160, 234320, 257752, 322190, 355520, 374912, 468640, 515504, 644380, 711040, 937280, 1031008, 1288760, 1874560, 2062016, 2577520, 4124032, 5155040, 10310080, 20620160]

約数ペア:

[(1, 20620160), (2, 10310080), (4, 5155040), (5, 4124032), (8, 2577520), (10, 2062016), (11, 1874560), (16, 1288760), (20, 1031008), (22, 937280), (29, 711040), (32, 644380), (40, 515504), (44, 468640), (55, 374912), (58, 355520), (64, 322190), (80, 257752), (88, 234320), (101, 204160), (110, 187456), (116, 177760), (128, 161095), (145, 142208), (160, 128876), (176, 117160), (202, 102080), (220, 93728), (232, 88880), (290, 71104), (319, 64640), (320, 64438), (352, 58580), (404, 51040), (440, 46864), (464, 44440), (505, 40832), (580, 35552), (638, 32320), (640, 32219), (704, 29290), (808, 25520), (880, 23432), (928, 22220), (1010, 20416), (1111, 18560), (1160, 17776), (1276, 16160), (1408, 14645), (1595, 12928), (1616, 12760), (1760, 11716), (1856, 11110), (2020, 10208), (2222, 9280), (2320, 8888), (2552, 8080), (2929, 7040), (3190, 6464), (3232, 6380), (3520, 5858), (3712, 5555), (4040, 5104), (4444, 4640)]