20796110720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{881}}^1$

素因数の和:1397

約数の個数: 256

約数和(自身を含む): 62183116800

約数和(自身を除く): 41387006080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 479, 560, 616, 640, 704, 770, 880, 881, 896, 958, 1120, 1232, 1408, 1540, 1760, 1762, 1916, 2240, 2395, 2464, 3080, 3353, 3520, 3524, 3832, 4405, 4480, 4790, 4928, 5269, 6160, 6167, 6706, 7040, 7048, 7664, 8810, 9580, 9691, 9856, 10538, 12320, 12334, 13412, 14096, 15328, 16765, 17620, 19160, 19382, 21076, 24640, 24668, 26345, 26824, 28192, 30656, 30835, 33530, 35240, 36883, 38320, 38764, 42152, 48455, 49280, 49336, 52690, 53648, 56384, 61312, 61670, 67060, 67837, 70480, 73766, 76640, 77528, 84304, 96910, 98672, 105380, 107296, 112768, 123340, 134120, 135674, 140960, 147532, 153280, 155056, 168608, 184415, 193820, 197344, 210760, 214592, 246680, 268240, 271348, 281920, 295064, 306560, 310112, 337216, 339185, 368830, 387640, 394688, 421520, 421999, 429184, 493360, 536480, 542696, 563840, 590128, 620224, 674432, 678370, 737660, 775280, 789376, 843040, 843998, 986720, 1072960, 1085392, 1180256, 1240448, 1356740, 1475320, 1550560, 1686080, 1687996, 1973440, 2109995, 2145920, 2170784, 2360512, 2713480, 2950640, 2953993, 3101120, 3372160, 3375992, 3946880, 4219990, 4341568, 4641989, 4721024, 5426960, 5901280, 5907986, 6202240, 6751984, 8439980, 8683136, 9283978, 10853920, 11802560, 11815972, 13503968, 14769965, 16879960, 18567956, 21707840, 23209945, 23605120, 23631944, 27007936, 29539930, 32493923, 33759920, 37135912, 43415680, 46419890, 47263888, 54015872, 59079860, 64987846, 67519840, 74271824, 92839780, 94527776, 118159720, 129975692, 135039680, 148543648, 162469615, 185679560, 189055552, 236319440, 259951384, 270079360, 297087296, 324939230, 371359120, 378111104, 472638880, 519902768, 594174592, 649878460, 742718240, 945277760, 1039805536, 1299756920, 1485436480, 1890555520, 2079611072, 2599513840, 2970872960, 4159222144, 5199027680, 10398055360, 20796110720]

約数ペア:

[(1, 20796110720), (2, 10398055360), (4, 5199027680), (5, 4159222144), (7, 2970872960), (8, 2599513840), (10, 2079611072), (11, 1890555520), (14, 1485436480), (16, 1299756920), (20, 1039805536), (22, 945277760), (28, 742718240), (32, 649878460), (35, 594174592), (40, 519902768), (44, 472638880), (55, 378111104), (56, 371359120), (64, 324939230), (70, 297087296), (77, 270079360), (80, 259951384), (88, 236319440), (110, 189055552), (112, 185679560), (128, 162469615), (140, 148543648), (154, 135039680), (160, 129975692), (176, 118159720), (220, 94527776), (224, 92839780), (280, 74271824), (308, 67519840), (320, 64987846), (352, 59079860), (385, 54015872), (440, 47263888), (448, 46419890), (479, 43415680), (560, 37135912), (616, 33759920), (640, 32493923), (704, 29539930), (770, 27007936), (880, 23631944), (881, 23605120), (896, 23209945), (958, 21707840), (1120, 18567956), (1232, 16879960), (1408, 14769965), (1540, 13503968), (1760, 11815972), (1762, 11802560), (1916, 10853920), (2240, 9283978), (2395, 8683136), (2464, 8439980), (3080, 6751984), (3353, 6202240), (3520, 5907986), (3524, 5901280), (3832, 5426960), (4405, 4721024), (4480, 4641989), (4790, 4341568), (4928, 4219990), (5269, 3946880), (6160, 3375992), (6167, 3372160), (6706, 3101120), (7040, 2953993), (7048, 2950640), (7664, 2713480), (8810, 2360512), (9580, 2170784), (9691, 2145920), (9856, 2109995), (10538, 1973440), (12320, 1687996), (12334, 1686080), (13412, 1550560), (14096, 1475320), (15328, 1356740), (16765, 1240448), (17620, 1180256), (19160, 1085392), (19382, 1072960), (21076, 986720), (24640, 843998), (24668, 843040), (26345, 789376), (26824, 775280), (28192, 737660), (30656, 678370), (30835, 674432), (33530, 620224), (35240, 590128), (36883, 563840), (38320, 542696), (38764, 536480), (42152, 493360), (48455, 429184), (49280, 421999), (49336, 421520), (52690, 394688), (53648, 387640), (56384, 368830), (61312, 339185), (61670, 337216), (67060, 310112), (67837, 306560), (70480, 295064), (73766, 281920), (76640, 271348), (77528, 268240), (84304, 246680), (96910, 214592), (98672, 210760), (105380, 197344), (107296, 193820), (112768, 184415), (123340, 168608), (134120, 155056), (135674, 153280), (140960, 147532)]