81311888

素因数分解:

$2^4\times 7^1\times {\mathrm{725999}}^1$

素因数の和:726014

約数の個数: 20

約数和(自身を含む): 180048000

約数和(自身を除く): 98736112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 725999, 1451998, 2903996, 5081993, 5807992, 10163986, 11615984, 20327972, 40655944, 81311888]

約数ペア:

[(1, 81311888), (2, 40655944), (4, 20327972), (7, 11615984), (8, 10163986), (14, 5807992), (16, 5081993), (28, 2903996), (56, 1451998), (112, 725999)]