20690795

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 5160085

約数列:

[1, 5, 31, 131, 155, 655, 1019, 4061, 5095, 20305, 31589, 133489, 157945, 667445, 4138159, 20690795]

約数ペア:

[(1, 20690795), (5, 4138159), (31, 667445), (131, 157945), (155, 133489), (655, 31589), (1019, 20305), (4061, 5095)]