208889408

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 168

約数和(自身を含む): 535472640

約数和(自身を除く): 326583232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 89, 91, 104, 112, 124, 169, 178, 182, 208, 217, 224, 248, 338, 356, 364, 403, 416, 434, 448, 496, 623, 676, 712, 728, 806, 832, 868, 992, 1157, 1183, 1246, 1352, 1424, 1456, 1612, 1736, 1984, 2314, 2366, 2492, 2704, 2759, 2821, 2848, 2912, 3224, 3472, 4628, 4732, 4984, 5239, 5408, 5518, 5642, 5696, 5824, 6448, 6944, 8099, 9256, 9464, 9968, 10478, 10816, 11036, 11284, 12896, 13888, 15041, 16198, 18512, 18928, 19313, 19936, 20956, 22072, 22568, 25792, 30082, 32396, 35867, 36673, 37024, 37856, 38626, 39872, 41912, 44144, 45136, 60164, 64792, 71734, 73346, 74048, 75712, 77252, 83824, 88288, 90272, 105287, 120328, 129584, 143468, 146692, 154504, 167648, 176576, 180544, 210574, 240656, 251069, 259168, 286936, 293384, 309008, 335296, 421148, 466271, 481312, 502138, 518336, 573872, 586768, 618016, 842296, 932542, 962624, 1004276, 1147744, 1173536, 1236032, 1684592, 1865084, 2008552, 2295488, 2347072, 3263897, 3369184, 3730168, 4017104, 6527794, 6738368, 7460336, 8034208, 13055588, 14920672, 16068416, 26111176, 29841344, 52222352, 104444704, 208889408]

約数ペア:

[(1, 208889408), (2, 104444704), (4, 52222352), (7, 29841344), (8, 26111176), (13, 16068416), (14, 14920672), (16, 13055588), (26, 8034208), (28, 7460336), (31, 6738368), (32, 6527794), (52, 4017104), (56, 3730168), (62, 3369184), (64, 3263897), (89, 2347072), (91, 2295488), (104, 2008552), (112, 1865084), (124, 1684592), (169, 1236032), (178, 1173536), (182, 1147744), (208, 1004276), (217, 962624), (224, 932542), (248, 842296), (338, 618016), (356, 586768), (364, 573872), (403, 518336), (416, 502138), (434, 481312), (448, 466271), (496, 421148), (623, 335296), (676, 309008), (712, 293384), (728, 286936), (806, 259168), (832, 251069), (868, 240656), (992, 210574), (1157, 180544), (1183, 176576), (1246, 167648), (1352, 154504), (1424, 146692), (1456, 143468), (1612, 129584), (1736, 120328), (1984, 105287), (2314, 90272), (2366, 88288), (2492, 83824), (2704, 77252), (2759, 75712), (2821, 74048), (2848, 73346), (2912, 71734), (3224, 64792), (3472, 60164), (4628, 45136), (4732, 44144), (4984, 41912), (5239, 39872), (5408, 38626), (5518, 37856), (5642, 37024), (5696, 36673), (5824, 35867), (6448, 32396), (6944, 30082), (8099, 25792), (9256, 22568), (9464, 22072), (9968, 20956), (10478, 19936), (10816, 19313), (11036, 18928), (11284, 18512), (12896, 16198), (13888, 15041)]