85129640

素因数分解:

$2^3\times 5^1\times {\mathrm{2128241}}^1$

素因数の和:2128252

約数の個数: 16

約数和(自身を含む): 191541780

約数和(自身を除く): 106412140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2128241, 4256482, 8512964, 10641205, 17025928, 21282410, 42564820, 85129640]

約数ペア:

[(1, 85129640), (2, 42564820), (4, 21282410), (5, 17025928), (8, 10641205), (10, 8512964), (20, 4256482), (40, 2128241)]