221649120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2038

約数の個数: 288

約数和(自身を含む): 943488000

約数和(自身を除く): 721838880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 160, 165, 168, 176, 180, 198, 210, 220, 224, 231, 240, 252, 264, 280, 288, 308, 315, 330, 336, 352, 360, 385, 396, 420, 440, 462, 480, 495, 504, 528, 560, 616, 630, 660, 672, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1056, 1120, 1155, 1232, 1260, 1320, 1386, 1440, 1540, 1584, 1680, 1760, 1848, 1980, 1999, 2016, 2310, 2464, 2520, 2640, 2772, 3080, 3168, 3360, 3465, 3696, 3960, 3998, 4620, 5040, 5280, 5544, 5997, 6160, 6930, 7392, 7920, 7996, 9240, 9995, 10080, 11088, 11994, 12320, 13860, 13993, 15840, 15992, 17991, 18480, 19990, 21989, 22176, 23988, 27720, 27986, 29985, 31984, 35982, 36960, 39980, 41979, 43978, 47976, 55440, 55972, 59970, 63968, 65967, 69965, 71964, 79960, 83958, 87956, 89955, 95952, 109945, 110880, 111944, 119940, 125937, 131934, 139930, 143928, 153923, 159920, 167916, 175912, 179910, 191904, 197901, 209895, 219890, 223888, 239880, 251874, 263868, 279860, 287856, 307846, 319840, 329835, 335832, 351824, 359820, 395802, 419790, 439780, 447776, 461769, 479760, 503748, 527736, 559720, 575712, 615692, 629685, 659670, 671664, 703648, 719640, 769615, 791604, 839580, 879560, 923538, 959520, 989505, 1007496, 1055472, 1119440, 1231384, 1259370, 1319340, 1343328, 1385307, 1439280, 1539230, 1583208, 1679160, 1759120, 1847076, 1979010, 2014992, 2110944, 2238880, 2308845, 2462768, 2518740, 2638680, 2770614, 2878560, 3078460, 3166416, 3358320, 3518240, 3694152, 3958020, 4029984, 4617690, 4925536, 5037480, 5277360, 5541228, 6156920, 6332832, 6716640, 6926535, 7388304, 7916040, 9235380, 10074960, 10554720, 11082456, 12313840, 13853070, 14776608, 15832080, 18470760, 20149920, 22164912, 24627680, 27706140, 31664160, 36941520, 44329824, 55412280, 73883040, 110824560, 221649120]

約数ペア:

[(1, 221649120), (2, 110824560), (3, 73883040), (4, 55412280), (5, 44329824), (6, 36941520), (7, 31664160), (8, 27706140), (9, 24627680), (10, 22164912), (11, 20149920), (12, 18470760), (14, 15832080), (15, 14776608), (16, 13853070), (18, 12313840), (20, 11082456), (21, 10554720), (22, 10074960), (24, 9235380), (28, 7916040), (30, 7388304), (32, 6926535), (33, 6716640), (35, 6332832), (36, 6156920), (40, 5541228), (42, 5277360), (44, 5037480), (45, 4925536), (48, 4617690), (55, 4029984), (56, 3958020), (60, 3694152), (63, 3518240), (66, 3358320), (70, 3166416), (72, 3078460), (77, 2878560), (80, 2770614), (84, 2638680), (88, 2518740), (90, 2462768), (96, 2308845), (99, 2238880), (105, 2110944), (110, 2014992), (112, 1979010), (120, 1847076), (126, 1759120), (132, 1679160), (140, 1583208), (144, 1539230), (154, 1439280), (160, 1385307), (165, 1343328), (168, 1319340), (176, 1259370), (180, 1231384), (198, 1119440), (210, 1055472), (220, 1007496), (224, 989505), (231, 959520), (240, 923538), (252, 879560), (264, 839580), (280, 791604), (288, 769615), (308, 719640), (315, 703648), (330, 671664), (336, 659670), (352, 629685), (360, 615692), (385, 575712), (396, 559720), (420, 527736), (440, 503748), (462, 479760), (480, 461769), (495, 447776), (504, 439780), (528, 419790), (560, 395802), (616, 359820), (630, 351824), (660, 335832), (672, 329835), (693, 319840), (720, 307846), (770, 287856), (792, 279860), (840, 263868), (880, 251874), (924, 239880), (990, 223888), (1008, 219890), (1056, 209895), (1120, 197901), (1155, 191904), (1232, 179910), (1260, 175912), (1320, 167916), (1386, 159920), (1440, 153923), (1540, 143928), (1584, 139930), (1680, 131934), (1760, 125937), (1848, 119940), (1980, 111944), (1999, 110880), (2016, 109945), (2310, 95952), (2464, 89955), (2520, 87956), (2640, 83958), (2772, 79960), (3080, 71964), (3168, 69965), (3360, 65967), (3465, 63968), (3696, 59970), (3960, 55972), (3998, 55440), (4620, 47976), (5040, 43978), (5280, 41979), (5544, 39980), (5997, 36960), (6160, 35982), (6930, 31984), (7392, 29985), (7920, 27986), (7996, 27720), (9240, 23988), (9995, 22176), (10080, 21989), (11088, 19990), (11994, 18480), (12320, 17991), (13860, 15992), (13993, 15840)]