81670576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392647}}^1$

素因数の和:392668

約数の個数: 20

約数和(自身を含む): 170409232

約数和(自身を除く): 88738656

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392647, 785294, 1570588, 3141176, 5104411, 6282352, 10208822, 20417644, 40835288, 81670576]

約数ペア:

[(1, 81670576), (2, 40835288), (4, 20417644), (8, 10208822), (13, 6282352), (16, 5104411), (26, 3141176), (52, 1570588), (104, 785294), (208, 392647)]