%0 Journal Article %A Yokota, Hisashi %T On a Sum of Divisors %J Canadian mathematical bulletin %D 1992 %P 423-430 %V 35 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-056-7/ %R 10.4153/CMB-1992-056-7 %F 10_4153_CMB_1992_056_7