20512954930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40847}}^1\times {\mathrm{3863}}^1$

素因数の和:44730

約数の個数: 32

約数和(自身を含む): 39774841344

約数和(自身を除く): 19261886414

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 3863, 7726, 19315, 38630, 40847, 50219, 81694, 100438, 204235, 251095, 408470, 502190, 531011, 1062022, 2655055, 5310110, 157791961, 315583922, 788959805, 1577919610, 2051295493, 4102590986, 10256477465, 20512954930]

約数ペア:

[(1, 20512954930), (2, 10256477465), (5, 4102590986), (10, 2051295493), (13, 1577919610), (26, 788959805), (65, 315583922), (130, 157791961), (3863, 5310110), (7726, 2655055), (19315, 1062022), (38630, 531011), (40847, 502190), (50219, 408470), (81694, 251095), (100438, 204235)]