256258548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 288

約数和(自身を含む): 880588800

約数和(自身を除く): 624330252

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 23, 26, 28, 36, 38, 39, 42, 46, 52, 57, 63, 69, 76, 78, 84, 91, 92, 114, 117, 126, 133, 138, 156, 161, 171, 179, 182, 207, 228, 234, 247, 252, 266, 273, 276, 299, 322, 342, 358, 364, 399, 414, 437, 468, 483, 494, 532, 537, 546, 598, 644, 684, 716, 741, 798, 819, 828, 874, 897, 966, 988, 1074, 1092, 1196, 1197, 1253, 1311, 1449, 1482, 1596, 1611, 1638, 1729, 1748, 1794, 1932, 2093, 2148, 2223, 2327, 2394, 2506, 2622, 2691, 2898, 2964, 3059, 3222, 3276, 3401, 3458, 3588, 3759, 3933, 4117, 4186, 4446, 4654, 4788, 5012, 5187, 5244, 5382, 5681, 5796, 6118, 6279, 6444, 6802, 6916, 6981, 7518, 7866, 8234, 8372, 8892, 9177, 9308, 10203, 10374, 10764, 11277, 11362, 12236, 12351, 12558, 13604, 13962, 15036, 15561, 15732, 16289, 16468, 17043, 18354, 18837, 20406, 20748, 20943, 22554, 22724, 23807, 24702, 25116, 27531, 27924, 28819, 30609, 31122, 32578, 34086, 36708, 37053, 37674, 39767, 40812, 41886, 44213, 45108, 47614, 48867, 49404, 51129, 53521, 55062, 57638, 61218, 62244, 65156, 68172, 71421, 74106, 75348, 78223, 79534, 83772, 86457, 88426, 95228, 97734, 102258, 107042, 110124, 115276, 119301, 122436, 132639, 142842, 146601, 148212, 156446, 159068, 160563, 172914, 176852, 195468, 204516, 214084, 214263, 234669, 238602, 259371, 265278, 285684, 293202, 309491, 312892, 321126, 345828, 357903, 374647, 397917, 428526, 469338, 477204, 481689, 518742, 530556, 547561, 586404, 618982, 642252, 704007, 715806, 749294, 795834, 857052, 928473, 938676, 963378, 1016899, 1037484, 1095122, 1123941, 1237964, 1408014, 1431612, 1498588, 1591668, 1642683, 1856946, 1926756, 2033798, 2190244, 2247882, 2785419, 2816028, 3050697, 3285366, 3371823, 3713892, 4067596, 4495764, 4928049, 5570838, 6101394, 6570732, 6743646, 7118293, 9152091, 9856098, 11141676, 12202788, 13487292, 14236586, 18304182, 19712196, 21354879, 28473172, 36608364, 42709758, 64064637, 85419516, 128129274, 256258548]

約数ペア:

[(1, 256258548), (2, 128129274), (3, 85419516), (4, 64064637), (6, 42709758), (7, 36608364), (9, 28473172), (12, 21354879), (13, 19712196), (14, 18304182), (18, 14236586), (19, 13487292), (21, 12202788), (23, 11141676), (26, 9856098), (28, 9152091), (36, 7118293), (38, 6743646), (39, 6570732), (42, 6101394), (46, 5570838), (52, 4928049), (57, 4495764), (63, 4067596), (69, 3713892), (76, 3371823), (78, 3285366), (84, 3050697), (91, 2816028), (92, 2785419), (114, 2247882), (117, 2190244), (126, 2033798), (133, 1926756), (138, 1856946), (156, 1642683), (161, 1591668), (171, 1498588), (179, 1431612), (182, 1408014), (207, 1237964), (228, 1123941), (234, 1095122), (247, 1037484), (252, 1016899), (266, 963378), (273, 938676), (276, 928473), (299, 857052), (322, 795834), (342, 749294), (358, 715806), (364, 704007), (399, 642252), (414, 618982), (437, 586404), (468, 547561), (483, 530556), (494, 518742), (532, 481689), (537, 477204), (546, 469338), (598, 428526), (644, 397917), (684, 374647), (716, 357903), (741, 345828), (798, 321126), (819, 312892), (828, 309491), (874, 293202), (897, 285684), (966, 265278), (988, 259371), (1074, 238602), (1092, 234669), (1196, 214263), (1197, 214084), (1253, 204516), (1311, 195468), (1449, 176852), (1482, 172914), (1596, 160563), (1611, 159068), (1638, 156446), (1729, 148212), (1748, 146601), (1794, 142842), (1932, 132639), (2093, 122436), (2148, 119301), (2223, 115276), (2327, 110124), (2394, 107042), (2506, 102258), (2622, 97734), (2691, 95228), (2898, 88426), (2964, 86457), (3059, 83772), (3222, 79534), (3276, 78223), (3401, 75348), (3458, 74106), (3588, 71421), (3759, 68172), (3933, 65156), (4117, 62244), (4186, 61218), (4446, 57638), (4654, 55062), (4788, 53521), (5012, 51129), (5187, 49404), (5244, 48867), (5382, 47614), (5681, 45108), (5796, 44213), (6118, 41886), (6279, 40812), (6444, 39767), (6802, 37674), (6916, 37053), (6981, 36708), (7518, 34086), (7866, 32578), (8234, 31122), (8372, 30609), (8892, 28819), (9177, 27924), (9308, 27531), (10203, 25116), (10374, 24702), (10764, 23807), (11277, 22724), (11362, 22554), (12236, 20943), (12351, 20748), (12558, 20406), (13604, 18837), (13962, 18354), (15036, 17043), (15561, 16468), (15732, 16289)]