256528368

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2437}}^1$

素因数の和:2511

約数の個数: 120

約数和(自身を含む): 778151088

約数和(自身を除く): 521622720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 43, 48, 51, 68, 72, 86, 102, 129, 136, 144, 153, 172, 204, 258, 272, 306, 344, 387, 408, 516, 612, 688, 731, 774, 816, 1032, 1224, 1462, 1548, 2064, 2193, 2437, 2448, 2924, 3096, 4386, 4874, 5848, 6192, 6579, 7311, 8772, 9748, 11696, 13158, 14622, 17544, 19496, 21933, 26316, 29244, 35088, 38992, 41429, 43866, 52632, 58488, 82858, 87732, 104791, 105264, 116976, 124287, 165716, 175464, 209582, 248574, 314373, 331432, 350928, 372861, 419164, 497148, 628746, 662864, 745722, 838328, 943119, 994296, 1257492, 1491444, 1676656, 1781447, 1886238, 1988592, 2514984, 2982888, 3562894, 3772476, 5029968, 5344341, 5965776, 7125788, 7544952, 10688682, 14251576, 15089904, 16033023, 21377364, 28503152, 32066046, 42754728, 64132092, 85509456, 128264184, 256528368]

約数ペア:

[(1, 256528368), (2, 128264184), (3, 85509456), (4, 64132092), (6, 42754728), (8, 32066046), (9, 28503152), (12, 21377364), (16, 16033023), (17, 15089904), (18, 14251576), (24, 10688682), (34, 7544952), (36, 7125788), (43, 5965776), (48, 5344341), (51, 5029968), (68, 3772476), (72, 3562894), (86, 2982888), (102, 2514984), (129, 1988592), (136, 1886238), (144, 1781447), (153, 1676656), (172, 1491444), (204, 1257492), (258, 994296), (272, 943119), (306, 838328), (344, 745722), (387, 662864), (408, 628746), (516, 497148), (612, 419164), (688, 372861), (731, 350928), (774, 331432), (816, 314373), (1032, 248574), (1224, 209582), (1462, 175464), (1548, 165716), (2064, 124287), (2193, 116976), (2437, 105264), (2448, 104791), (2924, 87732), (3096, 82858), (4386, 58488), (4874, 52632), (5848, 43866), (6192, 41429), (6579, 38992), (7311, 35088), (8772, 29244), (9748, 26316), (11696, 21933), (13158, 19496), (14622, 17544)]