12912960140

素因数分解:

$2^2\times 5^1\times {\mathrm{645648007}}^1$

素因数の和:645648016

約数の個数: 12

約数和(自身を含む): 27117216336

約数和(自身を除く): 14204256196

約数列:

[1, 2, 4, 5, 10, 20, 645648007, 1291296014, 2582592028, 3228240035, 6456480070, 12912960140]

約数ペア:

[(1, 12912960140), (2, 6456480070), (4, 3228240035), (5, 2582592028), (10, 1291296014), (20, 645648007)]