28468751090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218990393}}^1$

素因数の和:218990413

約数の個数: 16

約数和(自身を含む): 55185579288

約数和(自身を除く): 26716828198

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218990393, 437980786, 1094951965, 2189903930, 2846875109, 5693750218, 14234375545, 28468751090]

約数ペア:

[(1, 28468751090), (2, 14234375545), (5, 5693750218), (10, 2846875109), (13, 2189903930), (26, 1094951965), (65, 437980786), (130, 218990393)]