64969555

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{20857}}^1$

素因数の和:20958

約数の個数: 16

約数和(自身を含む): 90106560

約数和(自身を除く): 25137005

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 20857, 104285, 145999, 729995, 1856273, 9281365, 12993911, 64969555]

約数ペア:

[(1, 64969555), (5, 12993911), (7, 9281365), (35, 1856273), (89, 729995), (445, 145999), (623, 104285), (3115, 20857)]