81388048

素因数分解:

$2^4\times 7^1\times {\mathrm{726679}}^1$

素因数の和:726694

約数の個数: 20

約数和(自身を含む): 180216640

約数和(自身を除く): 98828592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 726679, 1453358, 2906716, 5086753, 5813432, 10173506, 11626864, 20347012, 40694024, 81388048]

約数ペア:

[(1, 81388048), (2, 40694024), (4, 20347012), (7, 11626864), (8, 10173506), (14, 5813432), (16, 5086753), (28, 2906716), (56, 1453358), (112, 726679)]