205817040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2042

約数の個数: 240

約数和(自身を含む): 812448000

約数和(自身を除く): 606630960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 144, 156, 165, 176, 180, 195, 198, 208, 220, 234, 240, 260, 264, 286, 312, 330, 360, 390, 396, 429, 440, 468, 495, 520, 528, 572, 585, 624, 660, 715, 720, 780, 792, 858, 880, 936, 990, 1040, 1144, 1170, 1287, 1320, 1430, 1560, 1584, 1716, 1872, 1980, 1999, 2145, 2288, 2340, 2574, 2640, 2860, 3120, 3432, 3960, 3998, 4290, 4680, 5148, 5720, 5997, 6435, 6864, 7920, 7996, 8580, 9360, 9995, 10296, 11440, 11994, 12870, 15992, 17160, 17991, 19990, 20592, 21989, 23988, 25740, 25987, 29985, 31984, 34320, 35982, 39980, 43978, 47976, 51480, 51974, 59970, 65967, 71964, 77961, 79960, 87956, 89955, 95952, 102960, 103948, 109945, 119940, 129935, 131934, 143928, 155922, 159920, 175912, 179910, 197901, 207896, 219890, 233883, 239880, 259870, 263868, 285857, 287856, 311844, 329835, 351824, 359820, 389805, 395802, 415792, 439780, 467766, 479760, 519740, 527736, 571714, 623688, 659670, 719640, 779610, 791604, 857571, 879560, 935532, 989505, 1039480, 1055472, 1143428, 1169415, 1247376, 1319340, 1429285, 1439280, 1559220, 1583208, 1715142, 1759120, 1871064, 1979010, 2078960, 2286856, 2338830, 2572713, 2638680, 2858570, 3118440, 3166416, 3430284, 3742128, 3958020, 4287855, 4573712, 4677660, 5145426, 5277360, 5717140, 6236880, 6860568, 7916040, 8575710, 9355320, 10290852, 11434280, 12863565, 13721136, 15832080, 17151420, 18710640, 20581704, 22868560, 25727130, 34302840, 41163408, 51454260, 68605680, 102908520, 205817040]

約数ペア:

[(1, 205817040), (2, 102908520), (3, 68605680), (4, 51454260), (5, 41163408), (6, 34302840), (8, 25727130), (9, 22868560), (10, 20581704), (11, 18710640), (12, 17151420), (13, 15832080), (15, 13721136), (16, 12863565), (18, 11434280), (20, 10290852), (22, 9355320), (24, 8575710), (26, 7916040), (30, 6860568), (33, 6236880), (36, 5717140), (39, 5277360), (40, 5145426), (44, 4677660), (45, 4573712), (48, 4287855), (52, 3958020), (55, 3742128), (60, 3430284), (65, 3166416), (66, 3118440), (72, 2858570), (78, 2638680), (80, 2572713), (88, 2338830), (90, 2286856), (99, 2078960), (104, 1979010), (110, 1871064), (117, 1759120), (120, 1715142), (130, 1583208), (132, 1559220), (143, 1439280), (144, 1429285), (156, 1319340), (165, 1247376), (176, 1169415), (180, 1143428), (195, 1055472), (198, 1039480), (208, 989505), (220, 935532), (234, 879560), (240, 857571), (260, 791604), (264, 779610), (286, 719640), (312, 659670), (330, 623688), (360, 571714), (390, 527736), (396, 519740), (429, 479760), (440, 467766), (468, 439780), (495, 415792), (520, 395802), (528, 389805), (572, 359820), (585, 351824), (624, 329835), (660, 311844), (715, 287856), (720, 285857), (780, 263868), (792, 259870), (858, 239880), (880, 233883), (936, 219890), (990, 207896), (1040, 197901), (1144, 179910), (1170, 175912), (1287, 159920), (1320, 155922), (1430, 143928), (1560, 131934), (1584, 129935), (1716, 119940), (1872, 109945), (1980, 103948), (1999, 102960), (2145, 95952), (2288, 89955), (2340, 87956), (2574, 79960), (2640, 77961), (2860, 71964), (3120, 65967), (3432, 59970), (3960, 51974), (3998, 51480), (4290, 47976), (4680, 43978), (5148, 39980), (5720, 35982), (5997, 34320), (6435, 31984), (6864, 29985), (7920, 25987), (7996, 25740), (8580, 23988), (9360, 21989), (9995, 20592), (10296, 19990), (11440, 17991), (11994, 17160), (12870, 15992)]