81771552

素因数分解:

$2^5\times 3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 192

約数和(自身を含む): 255467520

約数和(自身を除く): 173695968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 43, 48, 54, 62, 71, 72, 86, 93, 96, 108, 124, 129, 142, 144, 172, 186, 213, 216, 248, 258, 279, 284, 288, 344, 372, 387, 426, 432, 496, 516, 558, 568, 639, 688, 744, 774, 837, 852, 864, 992, 1032, 1116, 1136, 1161, 1278, 1333, 1376, 1488, 1548, 1674, 1704, 1917, 2064, 2201, 2232, 2272, 2322, 2556, 2666, 2976, 3053, 3096, 3348, 3408, 3834, 3999, 4128, 4402, 4464, 4644, 5112, 5332, 6106, 6192, 6603, 6696, 6816, 7668, 7998, 8804, 8928, 9159, 9288, 10224, 10664, 11997, 12212, 12384, 13206, 13392, 15336, 15996, 17608, 18318, 18576, 19809, 20448, 21328, 23994, 24424, 26412, 26784, 27477, 30672, 31992, 35216, 35991, 36636, 37152, 39618, 42656, 47988, 48848, 52824, 54954, 59427, 61344, 63984, 70432, 71982, 73272, 79236, 82431, 94643, 95976, 97696, 105648, 109908, 118854, 127968, 143964, 146544, 158472, 164862, 189286, 191952, 211296, 219816, 237708, 283929, 287928, 293088, 316944, 329724, 378572, 383904, 439632, 475416, 567858, 575856, 633888, 659448, 757144, 851787, 879264, 950832, 1135716, 1151712, 1318896, 1514288, 1703574, 1901664, 2271432, 2555361, 2637792, 3028576, 3407148, 4542864, 5110722, 6814296, 9085728, 10221444, 13628592, 20442888, 27257184, 40885776, 81771552]

約数ペア:

[(1, 81771552), (2, 40885776), (3, 27257184), (4, 20442888), (6, 13628592), (8, 10221444), (9, 9085728), (12, 6814296), (16, 5110722), (18, 4542864), (24, 3407148), (27, 3028576), (31, 2637792), (32, 2555361), (36, 2271432), (43, 1901664), (48, 1703574), (54, 1514288), (62, 1318896), (71, 1151712), (72, 1135716), (86, 950832), (93, 879264), (96, 851787), (108, 757144), (124, 659448), (129, 633888), (142, 575856), (144, 567858), (172, 475416), (186, 439632), (213, 383904), (216, 378572), (248, 329724), (258, 316944), (279, 293088), (284, 287928), (288, 283929), (344, 237708), (372, 219816), (387, 211296), (426, 191952), (432, 189286), (496, 164862), (516, 158472), (558, 146544), (568, 143964), (639, 127968), (688, 118854), (744, 109908), (774, 105648), (837, 97696), (852, 95976), (864, 94643), (992, 82431), (1032, 79236), (1116, 73272), (1136, 71982), (1161, 70432), (1278, 63984), (1333, 61344), (1376, 59427), (1488, 54954), (1548, 52824), (1674, 48848), (1704, 47988), (1917, 42656), (2064, 39618), (2201, 37152), (2232, 36636), (2272, 35991), (2322, 35216), (2556, 31992), (2666, 30672), (2976, 27477), (3053, 26784), (3096, 26412), (3348, 24424), (3408, 23994), (3834, 21328), (3999, 20448), (4128, 19809), (4402, 18576), (4464, 18318), (4644, 17608), (5112, 15996), (5332, 15336), (6106, 13392), (6192, 13206), (6603, 12384), (6696, 12212), (6816, 11997), (7668, 10664), (7998, 10224), (8804, 9288), (8928, 9159)]