257217664

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 592220160

約数和(自身を除く): 335002496

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 71, 83, 88, 124, 128, 142, 166, 176, 248, 284, 332, 341, 352, 496, 568, 664, 682, 704, 781, 913, 992, 1136, 1328, 1364, 1408, 1562, 1826, 1984, 2201, 2272, 2573, 2656, 2728, 3124, 3652, 3968, 4402, 4544, 5146, 5312, 5456, 5893, 6248, 7304, 8804, 9088, 10292, 10624, 10912, 11786, 12496, 14608, 17608, 20584, 21824, 23572, 24211, 24992, 28303, 29216, 35216, 41168, 43648, 47144, 48422, 49984, 56606, 58432, 64823, 70432, 82336, 94288, 96844, 99968, 113212, 116864, 129646, 140864, 164672, 182683, 188576, 193688, 226424, 259292, 281728, 329344, 365366, 377152, 387376, 452848, 518584, 730732, 754304, 774752, 905696, 1037168, 1461464, 1549504, 1811392, 2009513, 2074336, 2922928, 3099008, 3622784, 4019026, 4148672, 5845856, 8038052, 8297344, 11691712, 16076104, 23383424, 32152208, 64304416, 128608832, 257217664]

約数ペア:

[(1, 257217664), (2, 128608832), (4, 64304416), (8, 32152208), (11, 23383424), (16, 16076104), (22, 11691712), (31, 8297344), (32, 8038052), (44, 5845856), (62, 4148672), (64, 4019026), (71, 3622784), (83, 3099008), (88, 2922928), (124, 2074336), (128, 2009513), (142, 1811392), (166, 1549504), (176, 1461464), (248, 1037168), (284, 905696), (332, 774752), (341, 754304), (352, 730732), (496, 518584), (568, 452848), (664, 387376), (682, 377152), (704, 365366), (781, 329344), (913, 281728), (992, 259292), (1136, 226424), (1328, 193688), (1364, 188576), (1408, 182683), (1562, 164672), (1826, 140864), (1984, 129646), (2201, 116864), (2272, 113212), (2573, 99968), (2656, 96844), (2728, 94288), (3124, 82336), (3652, 70432), (3968, 64823), (4402, 58432), (4544, 56606), (5146, 49984), (5312, 48422), (5456, 47144), (5893, 43648), (6248, 41168), (7304, 35216), (8804, 29216), (9088, 28303), (10292, 24992), (10624, 24211), (10912, 23572), (11786, 21824), (12496, 20584), (14608, 17608)]