Sure, here are the six classical simple machines and their ideal mechanical advantages:

Lever: A bar that pivots at a fixed point called the fulcrum. The ideal mechanical advantage (IMA) is the ratio of the length of the effort arm to the length of the resistance arm1.

Wheel and Axle: A wheel attached to a smaller cylindrical object, the axle. If the wheel is used to exert the effort, then the IMA is the ratio of the radius of the wheel to the radius of the axle2.

Pulley: A wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion. The IMA is equal to the number of sections of rope that support the load2.

Inclined Plane: A flat surface tilted at an angle (ramp). The IMA is the ratio of the length of the slope to the height of the inclined plane1.

Wedge: An object with at least one slanting side ending in a sharp edge. The IMA can be calculated as the ratio of length to width2.

Screw: An inclined plane wrapped around a cylinder or cone. The IMA is roughly calculated as the length of one complete spiral around the cylinder divided by the pitch of the screw2.

Remember, these are ideal mechanical advantages assuming no friction or energy loss in the system.
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