20218505185

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1\times {\mathrm{63929}}^1$

素因数の和:65448

約数の個数: 16

約数和(自身を含む): 24843709440

約数和(自身を除く): 4625204255

約数列:

[1, 5, 43, 215, 1471, 7355, 63253, 63929, 316265, 319645, 2748947, 13744735, 94039559, 470197795, 4043701037, 20218505185]

約数ペア:

[(1, 20218505185), (5, 4043701037), (43, 470197795), (215, 94039559), (1471, 13744735), (7355, 2748947), (63253, 319645), (63929, 316265)]