  Because primordial black holes (PBHs) evaporate into all particle species in
nature, PBHs may emit several dark matter (DM) particle species with specific
mass spectra. We assume that PBHs are the only source of DMs, and DMs only
interact with the standard model particles gravitationally. We show a relation
between the number of DM particle species $N_{\rm DM}$ and initial PBH density
$\beta$ and mass $M_{\rm BH}^{\rm in}$. $\beta$-$M_{\rm BH}^{\rm in}$ curves
for different $N_{\rm DM}$ tend to overlap with each other for heavy initial
PBHs. We also show that the allowed region of DM masses for multiple DM.
