42542140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{111953}}^1$

素因数の和:111981

約数の個数: 24

約数和(自身を含む): 94041360

約数和(自身を除く): 51499220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 111953, 223906, 447812, 559765, 1119530, 2127107, 2239060, 4254214, 8508428, 10635535, 21271070, 42542140]

約数ペア:

[(1, 42542140), (2, 21271070), (4, 10635535), (5, 8508428), (10, 4254214), (19, 2239060), (20, 2127107), (38, 1119530), (76, 559765), (95, 447812), (190, 223906), (380, 111953)]