320159840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2045

約数の個数: 192

約数和(自身を含む): 1016064000

約数和(自身を除く): 695904160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 280, 286, 308, 352, 364, 385, 416, 440, 455, 520, 560, 572, 616, 715, 728, 770, 880, 910, 1001, 1040, 1120, 1144, 1232, 1430, 1456, 1540, 1760, 1820, 1999, 2002, 2080, 2288, 2464, 2860, 2912, 3080, 3640, 3998, 4004, 4576, 5005, 5720, 6160, 7280, 7996, 8008, 9995, 10010, 11440, 12320, 13993, 14560, 15992, 16016, 19990, 20020, 21989, 22880, 25987, 27986, 31984, 32032, 39980, 40040, 43978, 51974, 55972, 63968, 69965, 79960, 80080, 87956, 103948, 109945, 111944, 129935, 139930, 153923, 159920, 160160, 175912, 181909, 207896, 219890, 223888, 259870, 279860, 285857, 307846, 319840, 351824, 363818, 415792, 439780, 447776, 519740, 559720, 571714, 615692, 703648, 727636, 769615, 831584, 879560, 909545, 1039480, 1119440, 1143428, 1231384, 1429285, 1455272, 1539230, 1759120, 1819090, 2000999, 2078960, 2238880, 2286856, 2462768, 2858570, 2910544, 3078460, 3518240, 3638180, 4001998, 4157920, 4573712, 4925536, 5717140, 5821088, 6156920, 7276360, 8003996, 9147424, 10004995, 11434280, 12313840, 14552720, 16007992, 20009990, 22868560, 24627680, 29105440, 32015984, 40019980, 45737120, 64031968, 80039960, 160079920, 320159840]

約数ペア:

[(1, 320159840), (2, 160079920), (4, 80039960), (5, 64031968), (7, 45737120), (8, 40019980), (10, 32015984), (11, 29105440), (13, 24627680), (14, 22868560), (16, 20009990), (20, 16007992), (22, 14552720), (26, 12313840), (28, 11434280), (32, 10004995), (35, 9147424), (40, 8003996), (44, 7276360), (52, 6156920), (55, 5821088), (56, 5717140), (65, 4925536), (70, 4573712), (77, 4157920), (80, 4001998), (88, 3638180), (91, 3518240), (104, 3078460), (110, 2910544), (112, 2858570), (130, 2462768), (140, 2286856), (143, 2238880), (154, 2078960), (160, 2000999), (176, 1819090), (182, 1759120), (208, 1539230), (220, 1455272), (224, 1429285), (260, 1231384), (280, 1143428), (286, 1119440), (308, 1039480), (352, 909545), (364, 879560), (385, 831584), (416, 769615), (440, 727636), (455, 703648), (520, 615692), (560, 571714), (572, 559720), (616, 519740), (715, 447776), (728, 439780), (770, 415792), (880, 363818), (910, 351824), (1001, 319840), (1040, 307846), (1120, 285857), (1144, 279860), (1232, 259870), (1430, 223888), (1456, 219890), (1540, 207896), (1760, 181909), (1820, 175912), (1999, 160160), (2002, 159920), (2080, 153923), (2288, 139930), (2464, 129935), (2860, 111944), (2912, 109945), (3080, 103948), (3640, 87956), (3998, 80080), (4004, 79960), (4576, 69965), (5005, 63968), (5720, 55972), (6160, 51974), (7280, 43978), (7996, 40040), (8008, 39980), (9995, 32032), (10010, 31984), (11440, 27986), (12320, 25987), (13993, 22880), (14560, 21989), (15992, 20020), (16016, 19990)]