256282208

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 192

約数和(自身を含む): 682795008

約数和(自身を除く): 426512800

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 31, 32, 34, 52, 56, 62, 68, 91, 104, 112, 119, 124, 136, 167, 182, 208, 217, 221, 224, 238, 248, 272, 334, 364, 403, 416, 434, 442, 476, 496, 527, 544, 668, 728, 806, 868, 884, 952, 992, 1054, 1169, 1336, 1456, 1547, 1612, 1736, 1768, 1904, 2108, 2171, 2338, 2672, 2821, 2839, 2912, 3094, 3224, 3472, 3536, 3689, 3808, 4216, 4342, 4676, 5177, 5344, 5642, 5678, 6188, 6448, 6851, 6944, 7072, 7378, 8432, 8684, 9352, 10354, 11284, 11356, 12376, 12896, 13702, 14756, 15197, 16864, 17368, 18704, 19873, 20708, 22568, 22712, 24752, 27404, 29512, 30394, 34736, 36239, 36907, 37408, 39746, 41416, 45136, 45424, 47957, 49504, 54808, 59024, 60788, 67301, 69472, 72478, 73814, 79492, 82832, 88009, 90272, 90848, 95914, 109616, 118048, 121576, 134602, 144956, 147628, 158984, 165664, 176018, 191828, 219232, 243152, 258349, 269204, 289912, 295256, 317968, 352036, 383656, 471107, 486304, 516698, 538408, 579824, 590512, 616063, 635936, 704072, 767312, 942214, 1033396, 1076816, 1144117, 1159648, 1181024, 1232126, 1408144, 1534624, 1884428, 2066792, 2153632, 2288234, 2464252, 2816288, 3768856, 4133584, 4576468, 4928504, 7537712, 8008819, 8267168, 9152936, 9857008, 15075424, 16017638, 18305872, 19714016, 32035276, 36611744, 64070552, 128141104, 256282208]

約数ペア:

[(1, 256282208), (2, 128141104), (4, 64070552), (7, 36611744), (8, 32035276), (13, 19714016), (14, 18305872), (16, 16017638), (17, 15075424), (26, 9857008), (28, 9152936), (31, 8267168), (32, 8008819), (34, 7537712), (52, 4928504), (56, 4576468), (62, 4133584), (68, 3768856), (91, 2816288), (104, 2464252), (112, 2288234), (119, 2153632), (124, 2066792), (136, 1884428), (167, 1534624), (182, 1408144), (208, 1232126), (217, 1181024), (221, 1159648), (224, 1144117), (238, 1076816), (248, 1033396), (272, 942214), (334, 767312), (364, 704072), (403, 635936), (416, 616063), (434, 590512), (442, 579824), (476, 538408), (496, 516698), (527, 486304), (544, 471107), (668, 383656), (728, 352036), (806, 317968), (868, 295256), (884, 289912), (952, 269204), (992, 258349), (1054, 243152), (1169, 219232), (1336, 191828), (1456, 176018), (1547, 165664), (1612, 158984), (1736, 147628), (1768, 144956), (1904, 134602), (2108, 121576), (2171, 118048), (2338, 109616), (2672, 95914), (2821, 90848), (2839, 90272), (2912, 88009), (3094, 82832), (3224, 79492), (3472, 73814), (3536, 72478), (3689, 69472), (3808, 67301), (4216, 60788), (4342, 59024), (4676, 54808), (5177, 49504), (5344, 47957), (5642, 45424), (5678, 45136), (6188, 41416), (6448, 39746), (6851, 37408), (6944, 36907), (7072, 36239), (7378, 34736), (8432, 30394), (8684, 29512), (9352, 27404), (10354, 24752), (11284, 22712), (11356, 22568), (12376, 20708), (12896, 19873), (13702, 18704), (14756, 17368), (15197, 16864)]