20625260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54277}}^1$

素因数の和:54305

約数の個数: 24

約数和(自身を含む): 45593520

約数和(自身を除く): 24968260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54277, 108554, 217108, 271385, 542770, 1031263, 1085540, 2062526, 4125052, 5156315, 10312630, 20625260]

約数ペア:

[(1, 20625260), (2, 10312630), (4, 5156315), (5, 4125052), (10, 2062526), (19, 1085540), (20, 1031263), (38, 542770), (76, 271385), (95, 217108), (190, 108554), (380, 54277)]