[Haskell-cafe] Zumkeller numbers

[Frank Buss]

Anyone interested in writing some lines of Haskell code for generating the Zumkeller numbers? 

http://www.luschny.de/math/seq/ZumkellerNumbers.html

My C/C# solutions looks clumsy (but is fast). I think this can be done much more elegant in Haskell with lazy evaluation.

Not related to Haskell, but do you think semi-Zumkeller numbers are semi-perfect numbers? Maybe some Haskell code for testing it for some numbers?

-- 
Frank Buss, fb at frank-buss.de
http://www.frank-buss.de, http://www.it4-systems.de