81361672

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 183456000

約数和(自身を除く): 102094328

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 181, 184, 322, 349, 362, 644, 698, 724, 1267, 1288, 1396, 1448, 2443, 2534, 2792, 4163, 4886, 5068, 8027, 8326, 9772, 10136, 16054, 16652, 19544, 29141, 32108, 33304, 56189, 58282, 63169, 64216, 112378, 116564, 126338, 224756, 233128, 252676, 442183, 449512, 505352, 884366, 1452887, 1768732, 2905774, 3537464, 5811548, 10170209, 11623096, 20340418, 40680836, 81361672]

約数ペア:

[(1, 81361672), (2, 40680836), (4, 20340418), (7, 11623096), (8, 10170209), (14, 5811548), (23, 3537464), (28, 2905774), (46, 1768732), (56, 1452887), (92, 884366), (161, 505352), (181, 449512), (184, 442183), (322, 252676), (349, 233128), (362, 224756), (644, 126338), (698, 116564), (724, 112378), (1267, 64216), (1288, 63169), (1396, 58282), (1448, 56189), (2443, 33304), (2534, 32108), (2792, 29141), (4163, 19544), (4886, 16652), (5068, 16054), (8027, 10136), (8326, 9772)]