81445286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{953}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 139436640

約数和(自身を除く): 57991354

約数列:

[1, 2, 13, 19, 26, 38, 173, 247, 346, 494, 953, 1906, 2249, 3287, 4498, 6574, 12389, 18107, 24778, 36214, 42731, 85462, 164869, 235391, 329738, 470782, 2143297, 3132511, 4286594, 6265022, 40722643, 81445286]

約数ペア:

[(1, 81445286), (2, 40722643), (13, 6265022), (19, 4286594), (26, 3132511), (38, 2143297), (173, 470782), (247, 329738), (346, 235391), (494, 164869), (953, 85462), (1906, 42731), (2249, 36214), (3287, 24778), (4498, 18107), (6574, 12389)]