There's a subforum dedicated to aliquot sequences at


A C++ program for computing and verifying aliquot sequences. Designed to be run autonomously.

The actual factoring is mostly done with external programs. Trial division and Pollard rho are done internally, P-1/P+1/ECM are done with GMP-ECM, QS is done with Msieve or YAFU, and GNFS is done with ggnfs. Aliqueit tries to minimise the time spent factoring by running different methods to different depths depending on the composite size, though you're better off just using the "-y" argument and letting YAFU handle all that nowadays.

Fairly portable Visual Studio 2008 source code is included in the windows package. You'll need a GMP lib if you want to compile the source.


Windows 32/64-bit executables and source code: aliqueit v1.12
28 Apr 2013
389 KB
aliqueit v1.12 linux
28 Apr 2013
332 KB
Linux binaries by Dubslow.

External factoring programs

Most everything, incl. x64 versions

Also perhaps of interest is this tool to help check reservation status of aliquot sequences.

© Mikael Klasson (anything @ this site)
® 28 Apr 2013 03:00:56