165786440

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{30253}}^1$

素因数の和:30401

約数の個数: 32

約数和(自身を含む): 375754680

約数和(自身を除く): 209968240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 30253, 60506, 121012, 151265, 242024, 302530, 605060, 1210120, 4144661, 8289322, 16578644, 20723305, 33157288, 41446610, 82893220, 165786440]

約数ペア:

[(1, 165786440), (2, 82893220), (4, 41446610), (5, 33157288), (8, 20723305), (10, 16578644), (20, 8289322), (40, 4144661), (137, 1210120), (274, 605060), (548, 302530), (685, 242024), (1096, 151265), (1370, 121012), (2740, 60506), (5480, 30253)]