20109760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 112

約数和(自身を含む): 54315360

約数和(自身を除く): 34205600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 145, 160, 176, 197, 220, 232, 290, 319, 320, 352, 394, 440, 464, 580, 638, 704, 788, 880, 928, 985, 1160, 1276, 1576, 1595, 1760, 1856, 1970, 2167, 2320, 2552, 3152, 3190, 3520, 3940, 4334, 4640, 5104, 5713, 6304, 6380, 7880, 8668, 9280, 10208, 10835, 11426, 12608, 12760, 15760, 17336, 20416, 21670, 22852, 25520, 28565, 31520, 34672, 43340, 45704, 51040, 57130, 62843, 63040, 69344, 86680, 91408, 102080, 114260, 125686, 138688, 173360, 182816, 228520, 251372, 314215, 346720, 365632, 457040, 502744, 628430, 693440, 914080, 1005488, 1256860, 1828160, 2010976, 2513720, 4021952, 5027440, 10054880, 20109760]

約数ペア:

[(1, 20109760), (2, 10054880), (4, 5027440), (5, 4021952), (8, 2513720), (10, 2010976), (11, 1828160), (16, 1256860), (20, 1005488), (22, 914080), (29, 693440), (32, 628430), (40, 502744), (44, 457040), (55, 365632), (58, 346720), (64, 314215), (80, 251372), (88, 228520), (110, 182816), (116, 173360), (145, 138688), (160, 125686), (176, 114260), (197, 102080), (220, 91408), (232, 86680), (290, 69344), (319, 63040), (320, 62843), (352, 57130), (394, 51040), (440, 45704), (464, 43340), (580, 34672), (638, 31520), (704, 28565), (788, 25520), (880, 22852), (928, 21670), (985, 20416), (1160, 17336), (1276, 15760), (1576, 12760), (1595, 12608), (1760, 11426), (1856, 10835), (1970, 10208), (2167, 9280), (2320, 8668), (2552, 7880), (3152, 6380), (3190, 6304), (3520, 5713), (3940, 5104), (4334, 4640)]