68419280

素因数分解:

$2^4\times 5^1\times {\mathrm{855241}}^1$

素因数の和:855254

約数の個数: 20

約数和(自身を含む): 159075012

約数和(自身を除く): 90655732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 855241, 1710482, 3420964, 4276205, 6841928, 8552410, 13683856, 17104820, 34209640, 68419280]

約数ペア:

[(1, 68419280), (2, 34209640), (4, 17104820), (5, 13683856), (8, 8552410), (10, 6841928), (16, 4276205), (20, 3420964), (40, 1710482), (80, 855241)]