原式=1+24(5^2+1)(5^4+1)(5^8+1)(5^16+1)(5^32+1)
=1+(5^2-1)(5^2+1)(5^4+1)(5^8+1)(5^16+1)(5^32+1)
=1+(5^4-1)(5^4+1)(5^8+1)(5^16+1)(5^32+1)
=1+(5^8-1)(5^8+1)(5^16+1)(5^32+1)
=1+(5^16-1)(5^16+1)(5^32+1)
=1+(5^32-1)(5^32+1)
=1+5^64-1
=5^64