Computation about the paper 
 The sum of divisors function and the Riemann hypothesis
 
To see the computations, 
download the MAPLE sheet file
 colHRrev1mw.pdf
 
To read the paper download the .pdf file
 colHRrev1mod.pdf, 
To work in MAPLE, download in the same directory the three files
the MAPLE code file
 colHR.mpl, 
the data file
 colHR.m
and either
 colHR.mw
or a new Maple sheet.