20120780140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9767369}}^1$

素因数の和:9767481

約数の個数: 24

約数和(自身を含む): 42663872160

約数和(自身を除く): 22543092020

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9767369, 19534738, 39069476, 48836845, 97673690, 195347380, 1006039007, 2012078014, 4024156028, 5030195035, 10060390070, 20120780140]

約数ペア:

[(1, 20120780140), (2, 10060390070), (4, 5030195035), (5, 4024156028), (10, 2012078014), (20, 1006039007), (103, 195347380), (206, 97673690), (412, 48836845), (515, 39069476), (1030, 19534738), (2060, 9767369)]