26880290

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{5281}}^1$

素因数の和:5797

約数の個数: 16

約数和(自身を含む): 48488760

約数和(自身を除く): 21608470

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 5281, 10562, 26405, 52810, 2688029, 5376058, 13440145, 26880290]

約数ペア:

[(1, 26880290), (2, 13440145), (5, 5376058), (10, 2688029), (509, 52810), (1018, 26405), (2545, 10562), (5090, 5281)]