31999525

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 36

約数和(自身を含む): 43549792

約数和(自身を除く): 11550267

約数列:

[1, 5, 17, 25, 43, 85, 103, 215, 289, 425, 515, 731, 1075, 1445, 1751, 2575, 3655, 4429, 7225, 8755, 12427, 18275, 22145, 29767, 43775, 62135, 75293, 110725, 148835, 310675, 376465, 744175, 1279981, 1882325, 6399905, 31999525]

約数ペア:

[(1, 31999525), (5, 6399905), (17, 1882325), (25, 1279981), (43, 744175), (85, 376465), (103, 310675), (215, 148835), (289, 110725), (425, 75293), (515, 62135), (731, 43775), (1075, 29767), (1445, 22145), (1751, 18275), (2575, 12427), (3655, 8755), (4429, 7225)]