256847808

素因数分解:

$2^6\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1239

約数の個数: 168

約数和(自身を含む): 825593472

約数和(自身を除く): 568745664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 49, 56, 64, 69, 84, 92, 96, 98, 112, 138, 147, 161, 168, 184, 192, 196, 224, 276, 294, 322, 336, 368, 392, 448, 483, 552, 588, 644, 672, 736, 784, 966, 1104, 1127, 1176, 1187, 1288, 1344, 1472, 1568, 1932, 2208, 2254, 2352, 2374, 2576, 3136, 3381, 3561, 3864, 4416, 4508, 4704, 4748, 5152, 6762, 7122, 7728, 8309, 9016, 9408, 9496, 10304, 13524, 14244, 15456, 16618, 18032, 18992, 24927, 27048, 27301, 28488, 30912, 33236, 36064, 37984, 49854, 54096, 54602, 56976, 58163, 66472, 72128, 75968, 81903, 99708, 108192, 109204, 113952, 116326, 132944, 163806, 174489, 191107, 199416, 216384, 218408, 227904, 232652, 265888, 327612, 348978, 382214, 398832, 436816, 465304, 531776, 573321, 655224, 697956, 764428, 797664, 873632, 930608, 1146642, 1310448, 1337749, 1395912, 1528856, 1595328, 1747264, 1861216, 2293284, 2620896, 2675498, 2791824, 3057712, 3722432, 4013247, 4586568, 5241792, 5350996, 5583648, 6115424, 8026494, 9173136, 10701992, 11167296, 12230848, 16052988, 18346272, 21403984, 32105976, 36692544, 42807968, 64211952, 85615936, 128423904, 256847808]

約数ペア:

[(1, 256847808), (2, 128423904), (3, 85615936), (4, 64211952), (6, 42807968), (7, 36692544), (8, 32105976), (12, 21403984), (14, 18346272), (16, 16052988), (21, 12230848), (23, 11167296), (24, 10701992), (28, 9173136), (32, 8026494), (42, 6115424), (46, 5583648), (48, 5350996), (49, 5241792), (56, 4586568), (64, 4013247), (69, 3722432), (84, 3057712), (92, 2791824), (96, 2675498), (98, 2620896), (112, 2293284), (138, 1861216), (147, 1747264), (161, 1595328), (168, 1528856), (184, 1395912), (192, 1337749), (196, 1310448), (224, 1146642), (276, 930608), (294, 873632), (322, 797664), (336, 764428), (368, 697956), (392, 655224), (448, 573321), (483, 531776), (552, 465304), (588, 436816), (644, 398832), (672, 382214), (736, 348978), (784, 327612), (966, 265888), (1104, 232652), (1127, 227904), (1176, 218408), (1187, 216384), (1288, 199416), (1344, 191107), (1472, 174489), (1568, 163806), (1932, 132944), (2208, 116326), (2254, 113952), (2352, 109204), (2374, 108192), (2576, 99708), (3136, 81903), (3381, 75968), (3561, 72128), (3864, 66472), (4416, 58163), (4508, 56976), (4704, 54602), (4748, 54096), (5152, 49854), (6762, 37984), (7122, 36064), (7728, 33236), (8309, 30912), (9016, 28488), (9408, 27301), (9496, 27048), (10304, 24927), (13524, 18992), (14244, 18032), (15456, 16618)]