81727984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392923}}^1$

素因数の和:392944

約数の個数: 20

約数和(自身を含む): 170529016

約数和(自身を除く): 88801032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392923, 785846, 1571692, 3143384, 5107999, 6286768, 10215998, 20431996, 40863992, 81727984]

約数ペア:

[(1, 81727984), (2, 40863992), (4, 20431996), (8, 10215998), (13, 6286768), (16, 5107999), (26, 3143384), (52, 1571692), (104, 785846), (208, 392923)]