1991059840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3673}}^1$

素因数の和:3721

約数の個数: 192

約数和(自身を含む): 5980978080

約数和(自身を除く): 3989918240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 121, 128, 140, 154, 160, 176, 220, 224, 242, 280, 308, 320, 352, 385, 440, 448, 484, 560, 605, 616, 640, 704, 770, 847, 880, 896, 968, 1120, 1210, 1232, 1408, 1540, 1694, 1760, 1936, 2240, 2420, 2464, 3080, 3388, 3520, 3673, 3872, 4235, 4480, 4840, 4928, 6160, 6776, 7040, 7346, 7744, 8470, 9680, 9856, 12320, 13552, 14692, 15488, 16940, 18365, 19360, 24640, 25711, 27104, 29384, 33880, 36730, 38720, 40403, 49280, 51422, 54208, 58768, 67760, 73460, 77440, 80806, 102844, 108416, 117536, 128555, 135520, 146920, 161612, 202015, 205688, 235072, 257110, 271040, 282821, 293840, 323224, 404030, 411376, 444433, 470144, 514220, 542080, 565642, 587680, 646448, 808060, 822752, 888866, 1028440, 1131284, 1175360, 1292896, 1414105, 1616120, 1645504, 1777732, 2056880, 2222165, 2262568, 2350720, 2585792, 2828210, 3111031, 3232240, 3291008, 3555464, 4113760, 4444330, 4525136, 5171584, 5656420, 6222062, 6464480, 7110928, 8227520, 8888660, 9050272, 11312840, 12444124, 12928960, 14221856, 15555155, 16455040, 17777320, 18100544, 22625680, 24888248, 25857920, 28443712, 31110310, 35554640, 36201088, 45251360, 49776496, 56887424, 62220620, 71109280, 90502720, 99552992, 124441240, 142218560, 181005440, 199105984, 248882480, 284437120, 398211968, 497764960, 995529920, 1991059840]

約数ペア:

[(1, 1991059840), (2, 995529920), (4, 497764960), (5, 398211968), (7, 284437120), (8, 248882480), (10, 199105984), (11, 181005440), (14, 142218560), (16, 124441240), (20, 99552992), (22, 90502720), (28, 71109280), (32, 62220620), (35, 56887424), (40, 49776496), (44, 45251360), (55, 36201088), (56, 35554640), (64, 31110310), (70, 28443712), (77, 25857920), (80, 24888248), (88, 22625680), (110, 18100544), (112, 17777320), (121, 16455040), (128, 15555155), (140, 14221856), (154, 12928960), (160, 12444124), (176, 11312840), (220, 9050272), (224, 8888660), (242, 8227520), (280, 7110928), (308, 6464480), (320, 6222062), (352, 5656420), (385, 5171584), (440, 4525136), (448, 4444330), (484, 4113760), (560, 3555464), (605, 3291008), (616, 3232240), (640, 3111031), (704, 2828210), (770, 2585792), (847, 2350720), (880, 2262568), (896, 2222165), (968, 2056880), (1120, 1777732), (1210, 1645504), (1232, 1616120), (1408, 1414105), (1540, 1292896), (1694, 1175360), (1760, 1131284), (1936, 1028440), (2240, 888866), (2420, 822752), (2464, 808060), (3080, 646448), (3388, 587680), (3520, 565642), (3673, 542080), (3872, 514220), (4235, 470144), (4480, 444433), (4840, 411376), (4928, 404030), (6160, 323224), (6776, 293840), (7040, 282821), (7346, 271040), (7744, 257110), (8470, 235072), (9680, 205688), (9856, 202015), (12320, 161612), (13552, 146920), (14692, 135520), (15488, 128555), (16940, 117536), (18365, 108416), (19360, 102844), (24640, 80806), (25711, 77440), (27104, 73460), (29384, 67760), (33880, 58768), (36730, 54208), (38720, 51422), (40403, 49280)]