81741244

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{120919}}^1$

素因数の和:120949

約数の個数: 18

約数和(自身を含む): 154898520

約数和(自身を除く): 73157276

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 120919, 241838, 483676, 1571947, 3143894, 6287788, 20435311, 40870622, 81741244]

約数ペア:

[(1, 81741244), (2, 40870622), (4, 20435311), (13, 6287788), (26, 3143894), (52, 1571947), (169, 483676), (338, 241838), (676, 120919)]