138981920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:451

約数の個数: 192

約数和(自身を含む): 424569600

約数和(自身を除く): 285587680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 29, 32, 35, 40, 44, 55, 56, 58, 70, 77, 80, 88, 110, 112, 116, 140, 145, 154, 160, 176, 203, 220, 224, 232, 280, 290, 308, 319, 352, 385, 389, 406, 440, 464, 560, 580, 616, 638, 770, 778, 812, 880, 928, 1015, 1120, 1160, 1232, 1276, 1540, 1556, 1595, 1624, 1760, 1945, 2030, 2233, 2320, 2464, 2552, 2723, 3080, 3112, 3190, 3248, 3890, 4060, 4279, 4466, 4640, 5104, 5446, 6160, 6224, 6380, 6496, 7780, 8120, 8558, 8932, 10208, 10892, 11165, 11281, 12320, 12448, 12760, 13615, 15560, 16240, 17116, 17864, 21395, 21784, 22330, 22562, 25520, 27230, 29953, 31120, 32480, 34232, 35728, 42790, 43568, 44660, 45124, 51040, 54460, 56405, 59906, 62240, 68464, 71456, 78967, 85580, 87136, 89320, 90248, 108920, 112810, 119812, 124091, 136928, 149765, 157934, 171160, 178640, 180496, 217840, 225620, 239624, 248182, 299530, 315868, 342320, 357280, 360992, 394835, 435680, 451240, 479248, 496364, 599060, 620455, 631736, 684640, 789670, 868637, 902480, 958496, 992728, 1198120, 1240910, 1263472, 1579340, 1737274, 1804960, 1985456, 2396240, 2481820, 2526944, 3158680, 3474548, 3970912, 4343185, 4792480, 4963640, 6317360, 6949096, 8686370, 9927280, 12634720, 13898192, 17372740, 19854560, 27796384, 34745480, 69490960, 138981920]

約数ペア:

[(1, 138981920), (2, 69490960), (4, 34745480), (5, 27796384), (7, 19854560), (8, 17372740), (10, 13898192), (11, 12634720), (14, 9927280), (16, 8686370), (20, 6949096), (22, 6317360), (28, 4963640), (29, 4792480), (32, 4343185), (35, 3970912), (40, 3474548), (44, 3158680), (55, 2526944), (56, 2481820), (58, 2396240), (70, 1985456), (77, 1804960), (80, 1737274), (88, 1579340), (110, 1263472), (112, 1240910), (116, 1198120), (140, 992728), (145, 958496), (154, 902480), (160, 868637), (176, 789670), (203, 684640), (220, 631736), (224, 620455), (232, 599060), (280, 496364), (290, 479248), (308, 451240), (319, 435680), (352, 394835), (385, 360992), (389, 357280), (406, 342320), (440, 315868), (464, 299530), (560, 248182), (580, 239624), (616, 225620), (638, 217840), (770, 180496), (778, 178640), (812, 171160), (880, 157934), (928, 149765), (1015, 136928), (1120, 124091), (1160, 119812), (1232, 112810), (1276, 108920), (1540, 90248), (1556, 89320), (1595, 87136), (1624, 85580), (1760, 78967), (1945, 71456), (2030, 68464), (2233, 62240), (2320, 59906), (2464, 56405), (2552, 54460), (2723, 51040), (3080, 45124), (3112, 44660), (3190, 43568), (3248, 42790), (3890, 35728), (4060, 34232), (4279, 32480), (4466, 31120), (4640, 29953), (5104, 27230), (5446, 25520), (6160, 22562), (6224, 22330), (6380, 21784), (6496, 21395), (7780, 17864), (8120, 17116), (8558, 16240), (8932, 15560), (10208, 13615), (10892, 12760), (11165, 12448), (11281, 12320)]