256729512

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:635

約数の個数: 128

約数和(自身を含む): 740880000

約数和(自身を除く): 484150488

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 97, 102, 104, 136, 156, 194, 204, 221, 291, 312, 388, 408, 442, 499, 582, 663, 776, 884, 998, 1164, 1261, 1326, 1497, 1649, 1768, 1996, 2328, 2522, 2652, 2994, 3298, 3783, 3992, 4947, 5044, 5304, 5988, 6487, 6596, 7566, 8483, 9894, 10088, 11976, 12974, 13192, 15132, 16966, 19461, 19788, 21437, 25449, 25948, 30264, 33932, 38922, 39576, 42874, 48403, 50898, 51896, 64311, 67864, 77844, 85748, 96806, 101796, 110279, 128622, 145209, 155688, 171496, 193612, 203592, 220558, 257244, 290418, 330837, 387224, 441116, 514488, 580836, 629239, 661674, 822851, 882232, 1161672, 1258478, 1323348, 1645702, 1887717, 2468553, 2516956, 2646696, 3291404, 3775434, 4937106, 5033912, 6582808, 7550868, 9874212, 10697063, 15101736, 19748424, 21394126, 32091189, 42788252, 64182378, 85576504, 128364756, 256729512]

約数ペア:

[(1, 256729512), (2, 128364756), (3, 85576504), (4, 64182378), (6, 42788252), (8, 32091189), (12, 21394126), (13, 19748424), (17, 15101736), (24, 10697063), (26, 9874212), (34, 7550868), (39, 6582808), (51, 5033912), (52, 4937106), (68, 3775434), (78, 3291404), (97, 2646696), (102, 2516956), (104, 2468553), (136, 1887717), (156, 1645702), (194, 1323348), (204, 1258478), (221, 1161672), (291, 882232), (312, 822851), (388, 661674), (408, 629239), (442, 580836), (499, 514488), (582, 441116), (663, 387224), (776, 330837), (884, 290418), (998, 257244), (1164, 220558), (1261, 203592), (1326, 193612), (1497, 171496), (1649, 155688), (1768, 145209), (1996, 128622), (2328, 110279), (2522, 101796), (2652, 96806), (2994, 85748), (3298, 77844), (3783, 67864), (3992, 64311), (4947, 51896), (5044, 50898), (5304, 48403), (5988, 42874), (6487, 39576), (6596, 38922), (7566, 33932), (8483, 30264), (9894, 25948), (10088, 25449), (11976, 21437), (12974, 19788), (13192, 19461), (15132, 16966)]