2005807685

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{643919}}^1$

素因数の和:644020

約数の個数: 16

約数和(自身を含む): 2781734400

約数和(自身を除く): 775926715

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 643919, 3219595, 4507433, 22537165, 57308791, 286543955, 401161537, 2005807685]

約数ペア:

[(1, 2005807685), (5, 401161537), (7, 286543955), (35, 57308791), (89, 22537165), (445, 4507433), (623, 3219595), (3115, 643919)]