如何将列表中的所有整数乘以其索引求和？

def sum_of_indexed_elements(numbers):
    total = 0
    for index, value in enumerate(numbers):
        total += index * value
    return total

# 示例使用
numbers_list = [1, 2, 3, 4, 5]
result = sum_of_indexed_elements(numbers_list)
print("求和结果:", result)

def sum_of_indexed_elements(numbers):
    total = 0
    for index, value in enumerate(numbers):
        if not isinstance(value, int):
            raise ValueError("列表中包含非整数元素")
        total += index * value
    return total