2520是一个能被1到10中的每个数都除尽的最小的数。 那么能被1到20所有的数的整除的最小的正数是多少呢？-2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smallest positive number that is evenly divisible by all of the numbe