257612992

素因数分解:

$2^6\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 168

約数和(自身を含む): 656722080

約数和(自身を除く): 399109088

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 71, 89, 91, 98, 104, 112, 142, 178, 182, 196, 208, 224, 284, 356, 364, 392, 416, 448, 497, 568, 623, 637, 712, 728, 784, 832, 923, 994, 1136, 1157, 1246, 1274, 1424, 1456, 1568, 1846, 1988, 2272, 2314, 2492, 2548, 2848, 2912, 3136, 3479, 3692, 3976, 4361, 4544, 4628, 4984, 5096, 5696, 5824, 6319, 6461, 6958, 7384, 7952, 8099, 8722, 9256, 9968, 10192, 12638, 12922, 13916, 14768, 15904, 16198, 17444, 18512, 19936, 20384, 25276, 25844, 27832, 29536, 31808, 32396, 34888, 37024, 39872, 40768, 44233, 45227, 50552, 51688, 55664, 56693, 59072, 64792, 69776, 74048, 82147, 88466, 90454, 101104, 103376, 111328, 113386, 129584, 139552, 164294, 176932, 180908, 202208, 206752, 222656, 226772, 259168, 279104, 309631, 328588, 353864, 361816, 404416, 413504, 453544, 518336, 575029, 619262, 657176, 707728, 723632, 907088, 1150058, 1238524, 1314352, 1415456, 1447264, 1814176, 2300116, 2477048, 2628704, 2830912, 2894528, 3628352, 4025203, 4600232, 4954096, 5257408, 8050406, 9200464, 9908192, 16100812, 18400928, 19816384, 32201624, 36801856, 64403248, 128806496, 257612992]

約数ペア:

[(1, 257612992), (2, 128806496), (4, 64403248), (7, 36801856), (8, 32201624), (13, 19816384), (14, 18400928), (16, 16100812), (26, 9908192), (28, 9200464), (32, 8050406), (49, 5257408), (52, 4954096), (56, 4600232), (64, 4025203), (71, 3628352), (89, 2894528), (91, 2830912), (98, 2628704), (104, 2477048), (112, 2300116), (142, 1814176), (178, 1447264), (182, 1415456), (196, 1314352), (208, 1238524), (224, 1150058), (284, 907088), (356, 723632), (364, 707728), (392, 657176), (416, 619262), (448, 575029), (497, 518336), (568, 453544), (623, 413504), (637, 404416), (712, 361816), (728, 353864), (784, 328588), (832, 309631), (923, 279104), (994, 259168), (1136, 226772), (1157, 222656), (1246, 206752), (1274, 202208), (1424, 180908), (1456, 176932), (1568, 164294), (1846, 139552), (1988, 129584), (2272, 113386), (2314, 111328), (2492, 103376), (2548, 101104), (2848, 90454), (2912, 88466), (3136, 82147), (3479, 74048), (3692, 69776), (3976, 64792), (4361, 59072), (4544, 56693), (4628, 55664), (4984, 51688), (5096, 50552), (5696, 45227), (5824, 44233), (6319, 40768), (6461, 39872), (6958, 37024), (7384, 34888), (7952, 32396), (8099, 31808), (8722, 29536), (9256, 27832), (9968, 25844), (10192, 25276), (12638, 20384), (12922, 19936), (13916, 18512), (14768, 17444), (15904, 16198)]