1639465225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{16657}}^1$

素因数の和:16825

約数の個数: 24

約数和(自身を含む): 2115166208

約数和(自身を除く): 475700983

約数列:

[1, 5, 25, 31, 127, 155, 635, 775, 3175, 3937, 16657, 19685, 83285, 98425, 416425, 516367, 2115439, 2581835, 10577195, 12909175, 52885975, 65578609, 327893045, 1639465225]

約数ペア:

[(1, 1639465225), (5, 327893045), (25, 65578609), (31, 52885975), (127, 12909175), (155, 10577195), (635, 2581835), (775, 2115439), (3175, 516367), (3937, 416425), (16657, 98425), (19685, 83285)]