81681535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{26737}}^1$

素因数の和:26802

約数の個数: 16

約数和(自身を含む): 107807616

約数和(自身を除く): 26126081

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 26737, 133685, 347581, 1256639, 1737905, 6283195, 16336307, 81681535]

約数ペア:

[(1, 81681535), (5, 16336307), (13, 6283195), (47, 1737905), (65, 1256639), (235, 347581), (611, 133685), (3055, 26737)]