81509816

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{275371}}^1$

素因数の和:275414

約数の個数: 16

約数和(自身を含む): 156962040

約数和(自身を除く): 75452224

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 275371, 550742, 1101484, 2202968, 10188727, 20377454, 40754908, 81509816]

約数ペア:

[(1, 81509816), (2, 40754908), (4, 20377454), (8, 10188727), (37, 2202968), (74, 1101484), (148, 550742), (296, 275371)]