20722240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2$

素因数の和:93

約数の個数: 168

約数和(自身を含む): 63715392

約数和(自身を除く): 42993152

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 29, 32, 35, 40, 44, 55, 56, 58, 64, 70, 77, 80, 88, 110, 112, 116, 140, 145, 154, 160, 176, 203, 220, 224, 232, 280, 290, 308, 319, 320, 352, 385, 406, 440, 448, 464, 560, 580, 616, 638, 704, 770, 812, 841, 880, 928, 1015, 1120, 1160, 1232, 1276, 1540, 1595, 1624, 1682, 1760, 1856, 2030, 2233, 2240, 2320, 2464, 2552, 3080, 3190, 3248, 3364, 3520, 4060, 4205, 4466, 4640, 4928, 5104, 5887, 6160, 6380, 6496, 6728, 8120, 8410, 8932, 9251, 9280, 10208, 11165, 11774, 12320, 12760, 12992, 13456, 16240, 16820, 17864, 18502, 20416, 22330, 23548, 24640, 25520, 26912, 29435, 32480, 33640, 35728, 37004, 44660, 46255, 47096, 51040, 53824, 58870, 64757, 64960, 67280, 71456, 74008, 89320, 92510, 94192, 102080, 117740, 129514, 134560, 142912, 148016, 178640, 185020, 188384, 235480, 259028, 269120, 296032, 323785, 357280, 370040, 376768, 470960, 518056, 592064, 647570, 714560, 740080, 941920, 1036112, 1295140, 1480160, 1883840, 2072224, 2590280, 2960320, 4144448, 5180560, 10361120, 20722240]

約数ペア:

[(1, 20722240), (2, 10361120), (4, 5180560), (5, 4144448), (7, 2960320), (8, 2590280), (10, 2072224), (11, 1883840), (14, 1480160), (16, 1295140), (20, 1036112), (22, 941920), (28, 740080), (29, 714560), (32, 647570), (35, 592064), (40, 518056), (44, 470960), (55, 376768), (56, 370040), (58, 357280), (64, 323785), (70, 296032), (77, 269120), (80, 259028), (88, 235480), (110, 188384), (112, 185020), (116, 178640), (140, 148016), (145, 142912), (154, 134560), (160, 129514), (176, 117740), (203, 102080), (220, 94192), (224, 92510), (232, 89320), (280, 74008), (290, 71456), (308, 67280), (319, 64960), (320, 64757), (352, 58870), (385, 53824), (406, 51040), (440, 47096), (448, 46255), (464, 44660), (560, 37004), (580, 35728), (616, 33640), (638, 32480), (704, 29435), (770, 26912), (812, 25520), (841, 24640), (880, 23548), (928, 22330), (1015, 20416), (1120, 18502), (1160, 17864), (1232, 16820), (1276, 16240), (1540, 13456), (1595, 12992), (1624, 12760), (1682, 12320), (1760, 11774), (1856, 11165), (2030, 10208), (2233, 9280), (2240, 9251), (2320, 8932), (2464, 8410), (2552, 8120), (3080, 6728), (3190, 6496), (3248, 6380), (3364, 6160), (3520, 5887), (4060, 5104), (4205, 4928), (4466, 4640)]