81139292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1560371}}^1$

素因数の和:1560388

約数の個数: 12

約数和(自身を含む): 152916456

約数和(自身を除く): 71777164

約数列:

[1, 2, 4, 13, 26, 52, 1560371, 3120742, 6241484, 20284823, 40569646, 81139292]

約数ペア:

[(1, 81139292), (2, 40569646), (4, 20284823), (13, 6241484), (26, 3120742), (52, 1560371)]