129121378

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 209390400

約数和(自身を除く): 80269022

約数列:

[1, 2, 19, 38, 73, 89, 146, 178, 523, 1046, 1387, 1691, 2774, 3382, 6497, 9937, 12994, 19874, 38179, 46547, 76358, 93094, 123443, 246886, 725401, 884393, 1450802, 1768786, 3397931, 6795862, 64560689, 129121378]

約数ペア:

[(1, 129121378), (2, 64560689), (19, 6795862), (38, 3397931), (73, 1768786), (89, 1450802), (146, 884393), (178, 725401), (523, 246886), (1046, 123443), (1387, 93094), (1691, 76358), (2774, 46547), (3382, 38179), (6497, 19874), (9937, 12994)]