28257815

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{449}}^1$

素因数の和:802

約数の個数: 16

約数和(自身を含む): 34927200

約数和(自身を除く): 6669385

約数列:

[1, 5, 41, 205, 307, 449, 1535, 2245, 12587, 18409, 62935, 92045, 137843, 689215, 5651563, 28257815]

約数ペア:

[(1, 28257815), (5, 5651563), (41, 689215), (205, 137843), (307, 92045), (449, 62935), (1535, 18409), (2245, 12587)]