28260310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217387}}^1$

素因数の和:217407

約数の個数: 16

約数和(自身を含む): 54781776

約数和(自身を除く): 26521466

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217387, 434774, 1086935, 2173870, 2826031, 5652062, 14130155, 28260310]

約数ペア:

[(1, 28260310), (2, 14130155), (5, 5652062), (10, 2826031), (13, 2173870), (26, 1086935), (65, 434774), (130, 217387)]