81305168

素因数分解:

$2^4\times 7^1\times {\mathrm{725939}}^1$

素因数の和:725954

約数の個数: 20

約数和(自身を含む): 180033120

約数和(自身を除く): 98727952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 725939, 1451878, 2903756, 5081573, 5807512, 10163146, 11615024, 20326292, 40652584, 81305168]

約数ペア:

[(1, 81305168), (2, 40652584), (4, 20326292), (7, 11615024), (8, 10163146), (14, 5807512), (16, 5081573), (28, 2903756), (56, 1451878), (112, 725939)]