1990325285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{280921}}^1$

素因数の和:281048

約数の個数: 16

約数和(自身を含む): 2595719280

約数和(自身を除く): 605393995

約数列:

[1, 5, 13, 65, 109, 545, 1417, 7085, 280921, 1404605, 3651973, 18259865, 30620389, 153101945, 398065057, 1990325285]

約数ペア:

[(1, 1990325285), (5, 398065057), (13, 153101945), (65, 30620389), (109, 18259865), (545, 3651973), (1417, 1404605), (7085, 280921)]