20208978868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388634209}}^1$

素因数の和:388634226

約数の個数: 12

約数和(自身を含む): 38086152580

約数和(自身を除く): 17877173712

約数列:

[1, 2, 4, 13, 26, 52, 388634209, 777268418, 1554536836, 5052244717, 10104489434, 20208978868]

約数ペア:

[(1, 20208978868), (2, 10104489434), (4, 5052244717), (13, 1554536836), (26, 777268418), (52, 388634209)]