257660928

素因数分解:

$2^{11}\times 3^2\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2032

約数の個数: 144

約数和(自身を含む): 850908240

約数和(自身を除く): 593247312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 256, 288, 336, 384, 448, 504, 512, 576, 672, 768, 896, 1008, 1024, 1152, 1344, 1536, 1792, 1997, 2016, 2048, 2304, 2688, 3072, 3584, 3994, 4032, 4608, 5376, 5991, 6144, 7168, 7988, 8064, 9216, 10752, 11982, 13979, 14336, 15976, 16128, 17973, 18432, 21504, 23964, 27958, 31952, 32256, 35946, 41937, 43008, 47928, 55916, 63904, 64512, 71892, 83874, 95856, 111832, 125811, 127808, 129024, 143784, 167748, 191712, 223664, 251622, 255616, 287568, 335496, 383424, 447328, 503244, 511232, 575136, 670992, 766848, 894656, 1006488, 1022464, 1150272, 1341984, 1533696, 1789312, 2012976, 2044928, 2300544, 2683968, 3067392, 3578624, 4025952, 4089856, 4601088, 5367936, 6134784, 7157248, 8051904, 9202176, 10735872, 12269568, 14314496, 16103808, 18404352, 21471744, 28628992, 32207616, 36808704, 42943488, 64415232, 85886976, 128830464, 257660928]

約数ペア:

[(1, 257660928), (2, 128830464), (3, 85886976), (4, 64415232), (6, 42943488), (7, 36808704), (8, 32207616), (9, 28628992), (12, 21471744), (14, 18404352), (16, 16103808), (18, 14314496), (21, 12269568), (24, 10735872), (28, 9202176), (32, 8051904), (36, 7157248), (42, 6134784), (48, 5367936), (56, 4601088), (63, 4089856), (64, 4025952), (72, 3578624), (84, 3067392), (96, 2683968), (112, 2300544), (126, 2044928), (128, 2012976), (144, 1789312), (168, 1533696), (192, 1341984), (224, 1150272), (252, 1022464), (256, 1006488), (288, 894656), (336, 766848), (384, 670992), (448, 575136), (504, 511232), (512, 503244), (576, 447328), (672, 383424), (768, 335496), (896, 287568), (1008, 255616), (1024, 251622), (1152, 223664), (1344, 191712), (1536, 167748), (1792, 143784), (1997, 129024), (2016, 127808), (2048, 125811), (2304, 111832), (2688, 95856), (3072, 83874), (3584, 71892), (3994, 64512), (4032, 63904), (4608, 55916), (5376, 47928), (5991, 43008), (6144, 41937), (7168, 35946), (7988, 32256), (8064, 31952), (9216, 27958), (10752, 23964), (11982, 21504), (13979, 18432), (14336, 17973), (15976, 16128)]