20164144

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1259}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 32332496

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1259, 1456, 2002, 2288, 2518, 4004, 5036, 8008, 8813, 10072, 13849, 16016, 16367, 17626, 20144, 27698, 32734, 35252, 55396, 65468, 70504, 96943, 110792, 114569, 130936, 141008, 180037, 193886, 221584, 229138, 261872, 360074, 387772, 458276, 720148, 775544, 916552, 1260259, 1440296, 1551088, 1833104, 2520518, 2880592, 5041036, 10082072, 20164144]

約数ペア:

[(1, 20164144), (2, 10082072), (4, 5041036), (7, 2880592), (8, 2520518), (11, 1833104), (13, 1551088), (14, 1440296), (16, 1260259), (22, 916552), (26, 775544), (28, 720148), (44, 458276), (52, 387772), (56, 360074), (77, 261872), (88, 229138), (91, 221584), (104, 193886), (112, 180037), (143, 141008), (154, 130936), (176, 114569), (182, 110792), (208, 96943), (286, 70504), (308, 65468), (364, 55396), (572, 35252), (616, 32734), (728, 27698), (1001, 20144), (1144, 17626), (1232, 16367), (1259, 16016), (1456, 13849), (2002, 10072), (2288, 8813), (2518, 8008), (4004, 5036)]