1279519920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2152

約数の個数: 240

約数和(自身を含む): 4952064000

約数和(自身を除く): 3672544080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 127, 140, 144, 168, 180, 210, 240, 252, 254, 280, 315, 336, 360, 381, 420, 504, 508, 560, 630, 635, 720, 762, 840, 889, 1008, 1016, 1143, 1260, 1270, 1524, 1680, 1778, 1905, 1999, 2032, 2286, 2520, 2540, 2667, 3048, 3556, 3810, 3998, 4445, 4572, 5040, 5080, 5334, 5715, 5997, 6096, 7112, 7620, 7996, 8001, 8890, 9144, 9995, 10160, 10668, 11430, 11994, 13335, 13993, 14224, 15240, 15992, 16002, 17780, 17991, 18288, 19990, 21336, 22860, 23988, 26670, 27986, 29985, 30480, 31984, 32004, 35560, 35982, 39980, 40005, 41979, 42672, 45720, 47976, 53340, 55972, 59970, 64008, 69965, 71120, 71964, 79960, 80010, 83958, 89955, 91440, 95952, 106680, 111944, 119940, 125937, 128016, 139930, 143928, 159920, 160020, 167916, 179910, 209895, 213360, 223888, 239880, 251874, 253873, 279860, 287856, 320040, 335832, 359820, 419790, 479760, 503748, 507746, 559720, 629685, 640080, 671664, 719640, 761619, 839580, 1007496, 1015492, 1119440, 1259370, 1269365, 1439280, 1523238, 1679160, 1777111, 2014992, 2030984, 2284857, 2518740, 2538730, 3046476, 3358320, 3554222, 3808095, 4061968, 4569714, 5037480, 5077460, 5331333, 6092952, 7108444, 7616190, 8885555, 9139428, 10074960, 10154920, 10662666, 11424285, 12185904, 14216888, 15232380, 15993999, 17771110, 18278856, 20309840, 21325332, 22848570, 26656665, 28433776, 30464760, 31987998, 35542220, 36557712, 42650664, 45697140, 53313330, 60929520, 63975996, 71084440, 79969995, 85301328, 91394280, 106626660, 127951992, 142168880, 159939990, 182788560, 213253320, 255903984, 319879980, 426506640, 639759960, 1279519920]

約数ペア:

[(1, 1279519920), (2, 639759960), (3, 426506640), (4, 319879980), (5, 255903984), (6, 213253320), (7, 182788560), (8, 159939990), (9, 142168880), (10, 127951992), (12, 106626660), (14, 91394280), (15, 85301328), (16, 79969995), (18, 71084440), (20, 63975996), (21, 60929520), (24, 53313330), (28, 45697140), (30, 42650664), (35, 36557712), (36, 35542220), (40, 31987998), (42, 30464760), (45, 28433776), (48, 26656665), (56, 22848570), (60, 21325332), (63, 20309840), (70, 18278856), (72, 17771110), (80, 15993999), (84, 15232380), (90, 14216888), (105, 12185904), (112, 11424285), (120, 10662666), (126, 10154920), (127, 10074960), (140, 9139428), (144, 8885555), (168, 7616190), (180, 7108444), (210, 6092952), (240, 5331333), (252, 5077460), (254, 5037480), (280, 4569714), (315, 4061968), (336, 3808095), (360, 3554222), (381, 3358320), (420, 3046476), (504, 2538730), (508, 2518740), (560, 2284857), (630, 2030984), (635, 2014992), (720, 1777111), (762, 1679160), (840, 1523238), (889, 1439280), (1008, 1269365), (1016, 1259370), (1143, 1119440), (1260, 1015492), (1270, 1007496), (1524, 839580), (1680, 761619), (1778, 719640), (1905, 671664), (1999, 640080), (2032, 629685), (2286, 559720), (2520, 507746), (2540, 503748), (2667, 479760), (3048, 419790), (3556, 359820), (3810, 335832), (3998, 320040), (4445, 287856), (4572, 279860), (5040, 253873), (5080, 251874), (5334, 239880), (5715, 223888), (5997, 213360), (6096, 209895), (7112, 179910), (7620, 167916), (7996, 160020), (8001, 159920), (8890, 143928), (9144, 139930), (9995, 128016), (10160, 125937), (10668, 119940), (11430, 111944), (11994, 106680), (13335, 95952), (13993, 91440), (14224, 89955), (15240, 83958), (15992, 80010), (16002, 79960), (17780, 71964), (17991, 71120), (18288, 69965), (19990, 64008), (21336, 59970), (22860, 55972), (23988, 53340), (26670, 47976), (27986, 45720), (29985, 42672), (30480, 41979), (31984, 40005), (32004, 39980), (35560, 35982)]