20165566448

素因数分解:

$2^4\times {\mathrm{2591}}^1\times {\mathrm{486433}}^1$

素因数の和:489032

約数の個数: 20

約数和(自身を含む): 39085944768

約数和(自身を除く): 18920378320

約数列:

[1, 2, 4, 8, 16, 2591, 5182, 10364, 20728, 41456, 486433, 972866, 1945732, 3891464, 7782928, 1260347903, 2520695806, 5041391612, 10082783224, 20165566448]

約数ペア:

[(1, 20165566448), (2, 10082783224), (4, 5041391612), (8, 2520695806), (16, 1260347903), (2591, 7782928), (5182, 3891464), (10364, 1945732), (20728, 972866), (41456, 486433)]