890990165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{39503}}^1$

素因数の和:39868

約数の個数: 16

約数和(自身を含む): 1154780928

約数和(自身を除く): 263790763

約数列:

[1, 5, 13, 65, 347, 1735, 4511, 22555, 39503, 197515, 513539, 2567695, 13707541, 68537705, 178198033, 890990165]

約数ペア:

[(1, 890990165), (5, 178198033), (13, 68537705), (65, 13707541), (347, 2567695), (1735, 513539), (4511, 197515), (22555, 39503)]