28465810

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20479}}^1$

素因数の和:20625

約数の個数: 16

約数和(自身を含む): 51609600

約数和(自身を除く): 23143790

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20479, 40958, 102395, 204790, 2846581, 5693162, 14232905, 28465810]

約数ペア:

[(1, 28465810), (2, 14232905), (5, 5693162), (10, 2846581), (139, 204790), (278, 102395), (695, 40958), (1390, 20479)]