28262870

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20333}}^1$

素因数の和:20479

約数の個数: 16

約数和(自身を含む): 51241680

約数和(自身を除く): 22978810

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20333, 40666, 101665, 203330, 2826287, 5652574, 14131435, 28262870]

約数ペア:

[(1, 28262870), (2, 14131435), (5, 5652574), (10, 2826287), (139, 203330), (278, 101665), (695, 40666), (1390, 20333)]