81523456

素因数分解:

$2^8\times 7^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:194

約数の個数: 108

約数和(自身を含む): 194102328

約数和(自身を除く): 112578872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 67, 97, 98, 112, 128, 134, 194, 196, 224, 256, 268, 388, 392, 448, 469, 536, 679, 776, 784, 896, 938, 1072, 1358, 1552, 1568, 1792, 1876, 2144, 2716, 3104, 3136, 3283, 3752, 4288, 4753, 5432, 6208, 6272, 6499, 6566, 7504, 8576, 9506, 10864, 12416, 12544, 12998, 13132, 15008, 17152, 19012, 21728, 24832, 25996, 26264, 30016, 38024, 43456, 45493, 51992, 52528, 60032, 76048, 86912, 90986, 103984, 105056, 120064, 152096, 173824, 181972, 207968, 210112, 304192, 318451, 363944, 415936, 420224, 608384, 636902, 727888, 831872, 840448, 1216768, 1273804, 1455776, 1663744, 2547608, 2911552, 5095216, 5823104, 10190432, 11646208, 20380864, 40761728, 81523456]

約数ペア:

[(1, 81523456), (2, 40761728), (4, 20380864), (7, 11646208), (8, 10190432), (14, 5823104), (16, 5095216), (28, 2911552), (32, 2547608), (49, 1663744), (56, 1455776), (64, 1273804), (67, 1216768), (97, 840448), (98, 831872), (112, 727888), (128, 636902), (134, 608384), (194, 420224), (196, 415936), (224, 363944), (256, 318451), (268, 304192), (388, 210112), (392, 207968), (448, 181972), (469, 173824), (536, 152096), (679, 120064), (776, 105056), (784, 103984), (896, 90986), (938, 86912), (1072, 76048), (1358, 60032), (1552, 52528), (1568, 51992), (1792, 45493), (1876, 43456), (2144, 38024), (2716, 30016), (3104, 26264), (3136, 25996), (3283, 24832), (3752, 21728), (4288, 19012), (4753, 17152), (5432, 15008), (6208, 13132), (6272, 12998), (6499, 12544), (6566, 12416), (7504, 10864), (8576, 9506)]