81540818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{40487}}^1$

素因数の和:40561

約数の個数: 16

約数和(自身を含む): 131181120

約数和(自身を除く): 49640302

約数列:

[1, 2, 19, 38, 53, 106, 1007, 2014, 40487, 80974, 769253, 1538506, 2145811, 4291622, 40770409, 81540818]

約数ペア:

[(1, 81540818), (2, 40770409), (19, 4291622), (38, 2145811), (53, 1538506), (106, 769253), (1007, 80974), (2014, 40487)]