80668784

素因数分解:

$2^4\times 7^1\times {\mathrm{720257}}^1$

素因数の和:720272

約数の個数: 20

約数和(自身を含む): 178623984

約数和(自身を除く): 97955200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 720257, 1440514, 2881028, 5041799, 5762056, 10083598, 11524112, 20167196, 40334392, 80668784]

約数ペア:

[(1, 80668784), (2, 40334392), (4, 20167196), (7, 11524112), (8, 10083598), (14, 5762056), (16, 5041799), (28, 2881028), (56, 1440514), (112, 720257)]