20781284160

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2063

約数の個数: 672

約数和(自身を含む): 87562944000

約数和(自身を除く): 66781659840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 17, 20, 21, 24, 26, 28, 30, 32, 34, 35, 39, 40, 42, 48, 49, 51, 52, 56, 60, 64, 65, 68, 70, 78, 80, 84, 85, 91, 96, 98, 102, 104, 105, 112, 119, 120, 130, 136, 140, 147, 156, 160, 168, 170, 182, 192, 195, 196, 204, 208, 210, 221, 224, 238, 240, 245, 255, 260, 272, 273, 280, 294, 312, 320, 336, 340, 357, 364, 390, 392, 408, 416, 420, 442, 448, 455, 476, 480, 490, 510, 520, 544, 546, 560, 588, 595, 624, 637, 663, 672, 680, 714, 728, 735, 780, 784, 816, 832, 833, 840, 884, 910, 952, 960, 980, 1020, 1040, 1088, 1092, 1105, 1120, 1176, 1190, 1248, 1274, 1326, 1344, 1360, 1365, 1428, 1456, 1470, 1547, 1560, 1568, 1632, 1666, 1680, 1768, 1785, 1820, 1904, 1911, 1960, 1999, 2040, 2080, 2184, 2210, 2240, 2352, 2380, 2496, 2499, 2548, 2652, 2720, 2730, 2856, 2912, 2940, 3094, 3120, 3136, 3185, 3264, 3315, 3332, 3360, 3536, 3570, 3640, 3808, 3822, 3920, 3998, 4080, 4160, 4165, 4368, 4420, 4641, 4704, 4760, 4998, 5096, 5304, 5440, 5460, 5712, 5824, 5880, 5997, 6188, 6240, 6370, 6630, 6664, 6720, 7072, 7140, 7280, 7616, 7644, 7735, 7840, 7996, 8160, 8330, 8736, 8840, 9282, 9408, 9520, 9555, 9995, 9996, 10192, 10608, 10829, 10920, 11424, 11760, 11994, 12376, 12480, 12495, 12740, 13260, 13328, 13993, 14144, 14280, 14560, 15288, 15470, 15680, 15992, 16320, 16660, 17472, 17680, 18564, 19040, 19110, 19990, 19992, 20384, 21216, 21658, 21840, 22848, 23205, 23520, 23988, 24752, 24990, 25480, 25987, 26520, 26656, 27986, 28560, 29120, 29985, 30576, 30940, 31984, 32487, 33320, 33983, 35360, 37128, 38080, 38220, 39980, 39984, 40768, 41979, 42432, 43316, 43680, 46410, 47040, 47976, 49504, 49980, 50960, 51974, 53040, 53312, 54145, 55972, 57120, 59970, 61152, 61880, 63968, 64974, 66640, 67966, 69965, 70720, 74256, 76440, 77961, 79960, 79968, 83958, 86632, 87360, 92820, 95952, 97951, 99008, 99960, 101920, 101949, 103948, 106080, 108290, 111944, 114240, 119940, 122304, 123760, 127936, 129935, 129948, 133280, 135932, 139930, 148512, 152880, 155922, 159920, 159936, 162435, 167916, 169915, 173264, 181909, 185640, 191904, 195902, 199920, 203840, 203898, 207896, 209895, 212160, 216580, 223888, 237881, 239880, 247520, 259870, 259896, 266560, 271864, 279860, 293853, 297024, 305760, 311844, 319840, 324870, 335832, 339830, 346528, 363818, 371280, 383808, 389805, 391804, 399840, 407796, 415792, 419790, 433160, 441779, 447776, 475762, 479760, 489755, 495040, 509745, 519740, 519792, 543728, 545727, 559720, 587706, 611520, 623688, 639680, 649740, 671664, 679660, 693056, 713643, 727636, 742560, 779610, 783608, 799680, 815592, 831584, 839580, 866320, 883558, 895552, 909545, 951524, 959520, 979510, 1019490, 1039480, 1039584, 1087456, 1091454, 1119440, 1175412, 1189405, 1247376, 1273363, 1299480, 1325337, 1343328, 1359320, 1427286, 1455272, 1469265, 1485120, 1559220, 1567216, 1631184, 1663168, 1665167, 1679160, 1732640, 1767116, 1819090, 1903048, 1919040, 1959020, 2038980, 2078960, 2079168, 2174912, 2182908, 2208895, 2238880, 2350824, 2378810, 2494752, 2546726, 2598960, 2650674, 2686656, 2718640, 2728635, 2854572, 2910544, 2938530, 3092453, 3118440, 3134432, 3262368, 3330334, 3358320, 3465280, 3534232, 3568215, 3638180, 3806096, 3820089, 3918040, 4077960, 4157920, 4365816, 4417790, 4477760, 4701648, 4757620, 4989504, 4995501, 5093452, 5197920, 5301348, 5437280, 5457270, 5709144, 5821088, 5877060, 6184906, 6236880, 6268864, 6366815, 6524736, 6626685, 6660668, 6716640, 7068464, 7136430, 7276360, 7612192, 7640178, 7836080, 8155920, 8315840, 8325835, 8731632, 8835580, 9277359, 9403296, 9515240, 9991002, 10186904, 10395840, 10602696, 10874560, 10914540, 11418288, 11642176, 11754120, 12369812, 12473760, 12733630, 13253370, 13321336, 13433280, 14136928, 14272860, 14552720, 15224384, 15280356, 15462265, 15672160, 16311840, 16651670, 17463264, 17671160, 18554718, 18806592, 19030480, 19100445, 19982004, 20373808, 21205392, 21647171, 21829080, 22836576, 23508240, 24739624, 24947520, 24977505, 25467260, 26506740, 26642672, 28273856, 28545720, 29105440, 30560712, 30924530, 31344320, 32623680, 33303340, 34926528, 35342320, 37109436, 38060960, 38200890, 39964008, 40747616, 42410784, 43294342, 43658160, 45673152, 46386795, 47016480, 49479248, 49955010, 50934520, 53013480, 53285344, 57091440, 58210880, 61121424, 61849060, 64941513, 66606680, 70684640, 74218872, 76121920, 76401780, 79928016, 81495232, 84821568, 86588684, 87316320, 92773590, 94032960, 98958496, 99910020, 101869040, 106026960, 106570688, 108235855, 114182880, 122242848, 123698120, 129883026, 133213360, 141369280, 148437744, 152803560, 159856032, 173177368, 174632640, 185547180, 197916992, 199820040, 203738080, 212053920, 216471710, 228365760, 244485696, 247396240, 259766052, 266426720, 296875488, 305607120, 319712064, 324707565, 346354736, 371094360, 399640080, 407476160, 424107840, 432943420, 494792480, 519532104, 532853440, 593750976, 611214240, 649415130, 692709472, 742188720, 799280160, 865886840, 989584960, 1039064208, 1222428480, 1298830260, 1385418944, 1484377440, 1598560320, 1731773680, 2078128416, 2597660520, 2968754880, 3463547360, 4156256832, 5195321040, 6927094720, 10390642080, 20781284160]

約数ペア:

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22836576), (952, 21829080), (960, 21647171), (980, 21205392), (1020, 20373808), (1040, 19982004), (1088, 19100445), (1092, 19030480), (1105, 18806592), (1120, 18554718), (1176, 17671160), (1190, 17463264), (1248, 16651670), (1274, 16311840), (1326, 15672160), (1344, 15462265), (1360, 15280356), (1365, 15224384), (1428, 14552720), (1456, 14272860), (1470, 14136928), (1547, 13433280), (1560, 13321336), (1568, 13253370), (1632, 12733630), (1666, 12473760), (1680, 12369812), (1768, 11754120), (1785, 11642176), (1820, 11418288), (1904, 10914540), (1911, 10874560), (1960, 10602696), (1999, 10395840), (2040, 10186904), (2080, 9991002), (2184, 9515240), (2210, 9403296), (2240, 9277359), (2352, 8835580), (2380, 8731632), (2496, 8325835), (2499, 8315840), (2548, 8155920), (2652, 7836080), (2720, 7640178), (2730, 7612192), (2856, 7276360), (2912, 7136430), (2940, 7068464), (3094, 6716640), (3120, 6660668), (3136, 6626685), (3185, 6524736), (3264, 6366815), (3315, 6268864), (3332, 6236880), (3360, 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