5128790

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1279}}^1$

素因数の和:1687

約数の個数: 16

約数和(自身を含む): 9262080

約数和(自身を除く): 4133290

約数列:

[1, 2, 5, 10, 401, 802, 1279, 2005, 2558, 4010, 6395, 12790, 512879, 1025758, 2564395, 5128790]

約数ペア:

[(1, 5128790), (2, 2564395), (5, 1025758), (10, 512879), (401, 12790), (802, 6395), (1279, 4010), (2005, 2558)]