81852368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393521}}^1$

素因数の和:393542

約数の個数: 20

約数和(自身を含む): 170788548

約数和(自身を除く): 88936180

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393521, 787042, 1574084, 3148168, 5115773, 6296336, 10231546, 20463092, 40926184, 81852368]

約数ペア:

[(1, 81852368), (2, 40926184), (4, 20463092), (8, 10231546), (13, 6296336), (16, 5115773), (26, 3148168), (52, 1574084), (104, 787042), (208, 393521)]