20120020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9767}}^1$

素因数の和:9879

約数の個数: 24

約数和(自身を含む): 42666624

約数和(自身を除く): 22546604

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9767, 19534, 39068, 48835, 97670, 195340, 1006001, 2012002, 4024004, 5030005, 10060010, 20120020]

約数ペア:

[(1, 20120020), (2, 10060010), (4, 5030005), (5, 4024004), (10, 2012002), (20, 1006001), (103, 195340), (206, 97670), (412, 48835), (515, 39068), (1030, 19534), (2060, 9767)]