2238740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{15991}}^1$

素因数の和:16007

約数の個数: 24

約数和(自身を含む): 5373312

約数和(自身を除く): 3134572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 15991, 31982, 63964, 79955, 111937, 159910, 223874, 319820, 447748, 559685, 1119370, 2238740]

約数ペア:

[(1, 2238740), (2, 1119370), (4, 559685), (5, 447748), (7, 319820), (10, 223874), (14, 159910), (20, 111937), (28, 79955), (35, 63964), (70, 31982), (140, 15991)]