28289485

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18797}}^1$

素因数の和:18852

約数の個数: 16

約数和(自身を含む): 39701376

約数和(自身を除く): 11411891

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 18797, 93985, 131579, 657895, 808271, 4041355, 5657897, 28289485]

約数ペア:

[(1, 28289485), (5, 5657897), (7, 4041355), (35, 808271), (43, 657895), (215, 131579), (301, 93985), (1505, 18797)]