281657568

素因数分解:

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

素因数の和:189

約数の個数: 144

約数和(自身を含む): 792747648

約数和(自身を除く): 511090080

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 43, 48, 62, 71, 86, 93, 96, 124, 129, 142, 172, 186, 213, 248, 258, 284, 344, 372, 426, 496, 516, 568, 688, 744, 852, 961, 992, 1032, 1136, 1333, 1376, 1488, 1704, 1922, 2064, 2201, 2272, 2666, 2883, 2976, 3053, 3408, 3844, 3999, 4128, 4402, 5332, 5766, 6106, 6603, 6816, 7688, 7998, 8804, 9159, 10664, 11532, 12212, 13206, 15376, 15996, 17608, 18318, 21328, 23064, 24424, 26412, 30752, 31992, 35216, 36636, 41323, 42656, 46128, 48848, 52824, 63984, 68231, 70432, 73272, 82646, 92256, 94643, 97696, 105648, 123969, 127968, 136462, 146544, 165292, 189286, 204693, 211296, 247938, 272924, 283929, 293088, 330584, 378572, 409386, 495876, 545848, 567858, 661168, 757144, 818772, 991752, 1091696, 1135716, 1322336, 1514288, 1637544, 1983504, 2183392, 2271432, 2933933, 3028576, 3275088, 3967008, 4542864, 5867866, 6550176, 8801799, 9085728, 11735732, 17603598, 23471464, 35207196, 46942928, 70414392, 93885856, 140828784, 281657568]

約数ペア:

[(1, 281657568), (2, 140828784), (3, 93885856), (4, 70414392), (6, 46942928), (8, 35207196), (12, 23471464), (16, 17603598), (24, 11735732), (31, 9085728), (32, 8801799), (43, 6550176), (48, 5867866), (62, 4542864), (71, 3967008), (86, 3275088), (93, 3028576), (96, 2933933), (124, 2271432), (129, 2183392), (142, 1983504), (172, 1637544), (186, 1514288), (213, 1322336), (248, 1135716), (258, 1091696), (284, 991752), (344, 818772), (372, 757144), (426, 661168), (496, 567858), (516, 545848), (568, 495876), (688, 409386), (744, 378572), (852, 330584), (961, 293088), (992, 283929), (1032, 272924), (1136, 247938), (1333, 211296), (1376, 204693), (1488, 189286), (1704, 165292), (1922, 146544), (2064, 136462), (2201, 127968), (2272, 123969), (2666, 105648), (2883, 97696), (2976, 94643), (3053, 92256), (3408, 82646), (3844, 73272), (3999, 70432), (4128, 68231), (4402, 63984), (5332, 52824), (5766, 48848), (6106, 46128), (6603, 42656), (6816, 41323), (7688, 36636), (7998, 35216), (8804, 31992), (9159, 30752), (10664, 26412), (11532, 24424), (12212, 23064), (13206, 21328), (15376, 18318), (15996, 17608)]