81319168

素因数分解:

$2^8\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1973}}^1$

素因数の和:2019

約数の個数: 72

約数和(自身を含む): 193673088

約数和(自身を除く): 112353920

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 64, 92, 112, 128, 161, 184, 224, 256, 322, 368, 448, 644, 736, 896, 1288, 1472, 1792, 1973, 2576, 2944, 3946, 5152, 5888, 7892, 10304, 13811, 15784, 20608, 27622, 31568, 41216, 45379, 55244, 63136, 90758, 110488, 126272, 181516, 220976, 252544, 317653, 363032, 441952, 505088, 635306, 726064, 883904, 1270612, 1452128, 1767808, 2541224, 2904256, 3535616, 5082448, 5808512, 10164896, 11617024, 20329792, 40659584, 81319168]

約数ペア:

[(1, 81319168), (2, 40659584), (4, 20329792), (7, 11617024), (8, 10164896), (14, 5808512), (16, 5082448), (23, 3535616), (28, 2904256), (32, 2541224), (46, 1767808), (56, 1452128), (64, 1270612), (92, 883904), (112, 726064), (128, 635306), (161, 505088), (184, 441952), (224, 363032), (256, 317653), (322, 252544), (368, 220976), (448, 181516), (644, 126272), (736, 110488), (896, 90758), (1288, 63136), (1472, 55244), (1792, 45379), (1973, 41216), (2576, 31568), (2944, 27622), (3946, 20608), (5152, 15784), (5888, 13811), (7892, 10304)]