2013519905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{12990451}}^1$

素因数の和:12990487

約数の個数: 8

約数和(自身を含む): 2494166784

約数和(自身を除く): 480646879

約数列:

[1, 5, 31, 155, 12990451, 64952255, 402703981, 2013519905]

約数ペア:

[(1, 2013519905), (5, 402703981), (31, 64952255), (155, 12990451)]