18440090260

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8458757}}^1$

素因数の和:8458875

約数の個数: 24

約数和(自身を含む): 39079461960

約数和(自身を除く): 20639371700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8458757, 16917514, 33835028, 42293785, 84587570, 169175140, 922004513, 1844009026, 3688018052, 4610022565, 9220045130, 18440090260]

約数ペア:

[(1, 18440090260), (2, 9220045130), (4, 4610022565), (5, 3688018052), (10, 1844009026), (20, 922004513), (109, 169175140), (218, 84587570), (436, 42293785), (545, 33835028), (1090, 16917514), (2180, 8458757)]