31278385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{12689}}^1$

素因数の和:12740

約数の個数: 16

約数和(自身を含む): 41115600

約数和(自身を除く): 9837215

約数列:

[1, 5, 17, 29, 85, 145, 493, 2465, 12689, 63445, 215713, 367981, 1078565, 1839905, 6255677, 31278385]

約数ペア:

[(1, 31278385), (5, 6255677), (17, 1839905), (29, 1078565), (85, 367981), (145, 215713), (493, 63445), (2465, 12689)]