990398305

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{1172069}}^1$

素因数の和:1172100

約数の個数: 12

約数和(自身を含む): 1286932860

約数和(自身を除く): 296534555

約数列:

[1, 5, 13, 65, 169, 845, 1172069, 5860345, 15236897, 76184485, 198079661, 990398305]

約数ペア:

[(1, 990398305), (5, 198079661), (13, 76184485), (65, 15236897), (169, 5860345), (845, 1172069)]