81268376

素因数分解:

$2^3\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2243}}^1$

素因数の和:2903

約数の個数: 32

約数和(自身を含む): 174493440

約数和(自身を除く): 93225064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 647, 1294, 2243, 2588, 4486, 4529, 5176, 8972, 9058, 15701, 17944, 18116, 31402, 36232, 62804, 125608, 1451221, 2902442, 5804884, 10158547, 11609768, 20317094, 40634188, 81268376]

約数ペア:

[(1, 81268376), (2, 40634188), (4, 20317094), (7, 11609768), (8, 10158547), (14, 5804884), (28, 2902442), (56, 1451221), (647, 125608), (1294, 62804), (2243, 36232), (2588, 31402), (4486, 18116), (4529, 17944), (5176, 15701), (8972, 9058)]