81566464

素因数分解:

$2^8\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1979}}^1$

素因数の和:2025

約数の個数: 72

約数和(自身を含む): 194261760

約数和(自身を除く): 112695296

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, 1979, 2576, 2944, 3958, 5152, 5888, 7916, 10304, 13853, 15832, 20608, 27706, 31664, 41216, 45517, 55412, 63328, 91034, 110824, 126656, 182068, 221648, 253312, 318619, 364136, 443296, 506624, 637238, 728272, 886592, 1274476, 1456544, 1773184, 2548952, 2913088, 3546368, 5097904, 5826176, 10195808, 11652352, 20391616, 40783232, 81566464]

約数ペア:

[(1, 81566464), (2, 40783232), (4, 20391616), (7, 11652352), (8, 10195808), (14, 5826176), (16, 5097904), (23, 3546368), (28, 2913088), (32, 2548952), (46, 1773184), (56, 1456544), (64, 1274476), (92, 886592), (112, 728272), (128, 637238), (161, 506624), (184, 443296), (224, 364136), (256, 318619), (322, 253312), (368, 221648), (448, 182068), (644, 126656), (736, 110824), (896, 91034), (1288, 63328), (1472, 55412), (1792, 45517), (1979, 41216), (2576, 31664), (2944, 27706), (3958, 20608), (5152, 15832), (5888, 13853), (7916, 10304)]