20590045

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2711}}^1$

素因数の和:2761

約数の個数: 24

約数和(自身を含む): 29680128

約数和(自身を除く): 9090083

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 2711, 7595, 13555, 18977, 84041, 94885, 132839, 420205, 588287, 664195, 2941435, 4118009, 20590045]

約数ペア:

[(1, 20590045), (5, 4118009), (7, 2941435), (31, 664195), (35, 588287), (49, 420205), (155, 132839), (217, 94885), (245, 84041), (1085, 18977), (1519, 13555), (2711, 7595)]