80890576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388897}}^1$

素因数の和:388918

約数の個数: 20

約数和(自身を含む): 168781732

約数和(自身を除く): 87891156

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388897, 777794, 1555588, 3111176, 5055661, 6222352, 10111322, 20222644, 40445288, 80890576]

約数ペア:

[(1, 80890576), (2, 40445288), (4, 20222644), (8, 10111322), (13, 6222352), (16, 5055661), (26, 3111176), (52, 1555588), (104, 777794), (208, 388897)]