  We calculate the averaged number \nu of the lightest supersymmetric particles
(LSPs) in a shower from the decay of superheavy particle X by generalized DGLAP
equations. If the primary decayed particles have color charges and the
virtuality is around 10^13-10^14 GeV, the averaged number of the LSPs can
become O(100). As the result, the upper limit of the mass of the superheavy
particle, whose decay can produce the observed abundance of the dark matter,
can increase from 10^12 GeV to 10^14 GeV. Since the typical scale of the
inflaton mass of the chaotic inflation is around 10^13 GeV, the decay of the
inflaton can produce the observed dark matter abundance if the reheating
temperature is of order 1 GeV. Even for the standard model particles with
virtuality Q\sim 10-100 TeV, the averaged number of the LSPs becomes O(0.1) for
gluon, and O(0.01) for Higgs, which strongly constrains the scenario of
non-thermal LSP production from the decay of moduli with 10-100 TeV mass.
