256687488

素因数分解:

$2^7\times 3^3\times {\mathrm{17}}^2\times {\mathrm{257}}^1$

素因数の和:314

約数の個数: 192

約数和(自身を含む): 807901200

約数和(自身を除く): 551213712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 64, 68, 72, 96, 102, 108, 128, 136, 144, 153, 192, 204, 216, 257, 272, 288, 289, 306, 384, 408, 432, 459, 514, 544, 576, 578, 612, 771, 816, 864, 867, 918, 1028, 1088, 1152, 1156, 1224, 1542, 1632, 1728, 1734, 1836, 2056, 2176, 2312, 2313, 2448, 2601, 3084, 3264, 3456, 3468, 3672, 4112, 4369, 4624, 4626, 4896, 5202, 6168, 6528, 6936, 6939, 7344, 7803, 8224, 8738, 9248, 9252, 9792, 10404, 12336, 13107, 13872, 13878, 14688, 15606, 16448, 17476, 18496, 18504, 19584, 20808, 24672, 26214, 27744, 27756, 29376, 31212, 32896, 34952, 36992, 37008, 39321, 41616, 49344, 52428, 55488, 55512, 58752, 62424, 69904, 74016, 74273, 78642, 83232, 98688, 104856, 110976, 111024, 117963, 124848, 139808, 148032, 148546, 157284, 166464, 209712, 222048, 222819, 235926, 249696, 279616, 296064, 297092, 314568, 332928, 419424, 444096, 445638, 471852, 499392, 559232, 594184, 629136, 668457, 838848, 888192, 891276, 943704, 998784, 1188368, 1258272, 1336914, 1677696, 1782552, 1887408, 2005371, 2376736, 2516544, 2673828, 3565104, 3774816, 4010742, 4753472, 5033088, 5347656, 7130208, 7549632, 8021484, 9506944, 10695312, 14260416, 15099264, 16042968, 21390624, 28520832, 32085936, 42781248, 64171872, 85562496, 128343744, 256687488]

約数ペア:

[(1, 256687488), (2, 128343744), (3, 85562496), (4, 64171872), (6, 42781248), (8, 32085936), (9, 28520832), (12, 21390624), (16, 16042968), (17, 15099264), (18, 14260416), (24, 10695312), (27, 9506944), (32, 8021484), (34, 7549632), (36, 7130208), (48, 5347656), (51, 5033088), (54, 4753472), (64, 4010742), (68, 3774816), (72, 3565104), (96, 2673828), (102, 2516544), (108, 2376736), (128, 2005371), (136, 1887408), (144, 1782552), (153, 1677696), (192, 1336914), (204, 1258272), (216, 1188368), (257, 998784), (272, 943704), (288, 891276), (289, 888192), (306, 838848), (384, 668457), (408, 629136), (432, 594184), (459, 559232), (514, 499392), (544, 471852), (576, 445638), (578, 444096), (612, 419424), (771, 332928), (816, 314568), (864, 297092), (867, 296064), (918, 279616), (1028, 249696), (1088, 235926), (1152, 222819), (1156, 222048), (1224, 209712), (1542, 166464), (1632, 157284), (1728, 148546), (1734, 148032), (1836, 139808), (2056, 124848), (2176, 117963), (2312, 111024), (2313, 110976), (2448, 104856), (2601, 98688), (3084, 83232), (3264, 78642), (3456, 74273), (3468, 74016), (3672, 69904), (4112, 62424), (4369, 58752), (4624, 55512), (4626, 55488), (4896, 52428), (5202, 49344), (6168, 41616), (6528, 39321), (6936, 37008), (6939, 36992), (7344, 34952), (7803, 32896), (8224, 31212), (8738, 29376), (9248, 27756), (9252, 27744), (9792, 26214), (10404, 24672), (12336, 20808), (13107, 19584), (13872, 18504), (13878, 18496), (14688, 17476), (15606, 16448)]