256351648

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 658022400

約数和(自身を除く): 401670752

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 31, 32, 38, 56, 58, 62, 67, 76, 112, 116, 124, 133, 134, 152, 203, 217, 224, 232, 248, 266, 268, 304, 406, 434, 464, 469, 496, 532, 536, 551, 589, 608, 812, 868, 899, 928, 938, 992, 1064, 1072, 1102, 1178, 1273, 1624, 1736, 1798, 1876, 1943, 2077, 2128, 2144, 2204, 2356, 2546, 3248, 3472, 3596, 3752, 3857, 3886, 4123, 4154, 4256, 4408, 4712, 5092, 6293, 6496, 6944, 7192, 7504, 7714, 7772, 8246, 8308, 8816, 8911, 9424, 10184, 12586, 13601, 14384, 14539, 15008, 15428, 15544, 16492, 16616, 17081, 17632, 17822, 18848, 20368, 25172, 27202, 28768, 29078, 30856, 31088, 32984, 33232, 34162, 35644, 36917, 39463, 40736, 50344, 54404, 58156, 60233, 61712, 62176, 65968, 66464, 68324, 71288, 73834, 78926, 100688, 108808, 116312, 119567, 120466, 123424, 131936, 136648, 142576, 147668, 157852, 201376, 217616, 232624, 239134, 240932, 258419, 273296, 276241, 285152, 295336, 315704, 421631, 435232, 465248, 478268, 481864, 516838, 546592, 552482, 590672, 631408, 843262, 956536, 963728, 1033676, 1104964, 1144427, 1181344, 1262816, 1686524, 1913072, 1927456, 2067352, 2209928, 2288854, 3373048, 3826144, 4134704, 4419856, 4577708, 6746096, 8010989, 8269408, 8839712, 9155416, 13492192, 16021978, 18310832, 32043956, 36621664, 64087912, 128175824, 256351648]

約数ペア:

[(1, 256351648), (2, 128175824), (4, 64087912), (7, 36621664), (8, 32043956), (14, 18310832), (16, 16021978), (19, 13492192), (28, 9155416), (29, 8839712), (31, 8269408), (32, 8010989), (38, 6746096), (56, 4577708), (58, 4419856), (62, 4134704), (67, 3826144), (76, 3373048), (112, 2288854), (116, 2209928), (124, 2067352), (133, 1927456), (134, 1913072), (152, 1686524), (203, 1262816), (217, 1181344), (224, 1144427), (232, 1104964), (248, 1033676), (266, 963728), (268, 956536), (304, 843262), (406, 631408), (434, 590672), (464, 552482), (469, 546592), (496, 516838), (532, 481864), (536, 478268), (551, 465248), (589, 435232), (608, 421631), (812, 315704), (868, 295336), (899, 285152), (928, 276241), (938, 273296), (992, 258419), (1064, 240932), (1072, 239134), (1102, 232624), (1178, 217616), (1273, 201376), (1624, 157852), (1736, 147668), (1798, 142576), (1876, 136648), (1943, 131936), (2077, 123424), (2128, 120466), (2144, 119567), (2204, 116312), (2356, 108808), (2546, 100688), (3248, 78926), (3472, 73834), (3596, 71288), (3752, 68324), (3857, 66464), (3886, 65968), (4123, 62176), (4154, 61712), (4256, 60233), (4408, 58156), (4712, 54404), (5092, 50344), (6293, 40736), (6496, 39463), (6944, 36917), (7192, 35644), (7504, 34162), (7714, 33232), (7772, 32984), (8246, 31088), (8308, 30856), (8816, 29078), (8911, 28768), (9424, 27202), (10184, 25172), (12586, 20368), (13601, 18848), (14384, 17822), (14539, 17632), (15008, 17081), (15428, 16616), (15544, 16492)]