已知m=2×3×5，那么m的约数一共有请选择ABC.F4~4e0[*m/^*e1e7X,R'l8Q*U'N5x3r4e
A．4个7X,R'l8Q*U'N5x3r4e
B．8个7X,R'l8Q*U'N5x3r4e
C．12个7X,R'l8Q*U'N5x3r4e