28490590

素因数分解:

$2^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{10139}}^1$

素因数の和:10427

約数の個数: 16

約数和(自身を含む): 51470640

約数和(自身を除く): 22980050

約数列:

[1, 2, 5, 10, 281, 562, 1405, 2810, 10139, 20278, 50695, 101390, 2849059, 5698118, 14245295, 28490590]

約数ペア:

[(1, 28490590), (2, 14245295), (5, 5698118), (10, 2849059), (281, 101390), (562, 50695), (1405, 20278), (2810, 10139)]