81159568

素因数分解:

$2^4\times 7^1\times {\mathrm{724639}}^1$

素因数の和:724654

約数の個数: 20

約数和(自身を含む): 179710720

約数和(自身を除く): 98551152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 724639, 1449278, 2898556, 5072473, 5797112, 10144946, 11594224, 20289892, 40579784, 81159568]

約数ペア:

[(1, 81159568), (2, 40579784), (4, 20289892), (7, 11594224), (8, 10144946), (14, 5797112), (16, 5072473), (28, 2898556), (56, 1449278), (112, 724639)]