31664160

素因数分解:

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

素因数の和:2031

約数の個数: 144

約数和(自身を含む): 117936000

約数和(自身を除く): 86271840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1320, 1440, 1584, 1760, 1980, 1999, 2640, 3168, 3960, 3998, 5280, 5997, 7920, 7996, 9995, 11994, 15840, 15992, 17991, 19990, 21989, 23988, 29985, 31984, 35982, 39980, 43978, 47976, 59970, 63968, 65967, 71964, 79960, 87956, 89955, 95952, 109945, 119940, 131934, 143928, 159920, 175912, 179910, 191904, 197901, 219890, 239880, 263868, 287856, 319840, 329835, 351824, 359820, 395802, 439780, 479760, 527736, 575712, 659670, 703648, 719640, 791604, 879560, 959520, 989505, 1055472, 1319340, 1439280, 1583208, 1759120, 1979010, 2110944, 2638680, 2878560, 3166416, 3518240, 3958020, 5277360, 6332832, 7916040, 10554720, 15832080, 31664160]

約数ペア:

[(1, 31664160), (2, 15832080), (3, 10554720), (4, 7916040), (5, 6332832), (6, 5277360), (8, 3958020), (9, 3518240), (10, 3166416), (11, 2878560), (12, 2638680), (15, 2110944), (16, 1979010), (18, 1759120), (20, 1583208), (22, 1439280), (24, 1319340), (30, 1055472), (32, 989505), (33, 959520), (36, 879560), (40, 791604), (44, 719640), (45, 703648), (48, 659670), (55, 575712), (60, 527736), (66, 479760), (72, 439780), (80, 395802), (88, 359820), (90, 351824), (96, 329835), (99, 319840), (110, 287856), (120, 263868), (132, 239880), (144, 219890), (160, 197901), (165, 191904), (176, 179910), (180, 175912), (198, 159920), (220, 143928), (240, 131934), (264, 119940), (288, 109945), (330, 95952), (352, 89955), (360, 87956), (396, 79960), (440, 71964), (480, 65967), (495, 63968), (528, 59970), (660, 47976), (720, 43978), (792, 39980), (880, 35982), (990, 31984), (1056, 29985), (1320, 23988), (1440, 21989), (1584, 19990), (1760, 17991), (1980, 15992), (1999, 15840), (2640, 11994), (3168, 9995), (3960, 7996), (3998, 7920), (5280, 5997)]