28253810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217337}}^1$

素因数の和:217357

約数の個数: 16

約数和(自身を含む): 54769176

約数和(自身を除く): 26515366

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217337, 434674, 1086685, 2173370, 2825381, 5650762, 14126905, 28253810]

約数ペア:

[(1, 28253810), (2, 14126905), (5, 5650762), (10, 2825381), (13, 2173370), (26, 1086685), (65, 434674), (130, 217337)]