12960140

素因数分解:

$2^2\times 5^1\times {\mathrm{648007}}^1$

素因数の和:648016

約数の個数: 12

約数和(自身を含む): 27216336

約数和(自身を除く): 14256196

約数列:

[1, 2, 4, 5, 10, 20, 648007, 1296014, 2592028, 3240035, 6480070, 12960140]

約数ペア:

[(1, 12960140), (2, 6480070), (4, 3240035), (5, 2592028), (10, 1296014), (20, 648007)]