28107755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 9994645

約数列:

[1, 5, 13, 41, 53, 65, 199, 205, 265, 533, 689, 995, 2173, 2587, 2665, 3445, 8159, 10547, 10865, 12935, 28249, 40795, 52735, 106067, 137111, 141245, 432427, 530335, 685555, 2162135, 5621551, 28107755]

約数ペア:

[(1, 28107755), (5, 5621551), (13, 2162135), (41, 685555), (53, 530335), (65, 432427), (199, 141245), (205, 137111), (265, 106067), (533, 52735), (689, 40795), (995, 28249), (2173, 12935), (2587, 10865), (2665, 10547), (3445, 8159)]