81641392

素因数分解:

$2^4\times 7^1\times {\mathrm{728941}}^1$

素因数の和:728956

約数の個数: 20

約数和(自身を含む): 180777616

約数和(自身を除く): 99136224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 728941, 1457882, 2915764, 5102587, 5831528, 10205174, 11663056, 20410348, 40820696, 81641392]

約数ペア:

[(1, 81641392), (2, 40820696), (4, 20410348), (7, 11663056), (8, 10205174), (14, 5831528), (16, 5102587), (28, 2915764), (56, 1457882), (112, 728941)]