20042545

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{439}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 25217280

約数和(自身を除く): 5174735

約数列:

[1, 5, 23, 115, 397, 439, 1985, 2195, 9131, 10097, 45655, 50485, 174283, 871415, 4008509, 20042545]

約数ペア:

[(1, 20042545), (5, 4008509), (23, 871415), (115, 174283), (397, 50485), (439, 45655), (1985, 10097), (2195, 9131)]