欧拉计划-5

end = 20
temp = [num for num in range(2,end+1)]
n = len(temp)
for index_1 in range(n):
    num = temp[index_1]  # 将其作为被除数
    for index_2 in range(index_1+1,n):
        if temp[index_2]%num == 0 and num != 1:
            temp[index_2] /= num

s = 1
for num in temp:
    s *= num
print(s)

反正问题是解决了，以后看看有没有简洁的方法。