28396810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218437}}^1$

素因数の和:218457

約数の個数: 16

約数和(自身を含む): 55046376

約数和(自身を除く): 26649566

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218437, 436874, 1092185, 2184370, 2839681, 5679362, 14198405, 28396810]

約数ペア:

[(1, 28396810), (2, 14198405), (5, 5679362), (10, 2839681), (13, 2184370), (26, 1092185), (65, 436874), (130, 218437)]