123401905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{31601}}^1$

素因数の和:31688

約数の個数: 16

約数和(自身を含む): 163824768

約数和(自身を除く): 40422863

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 31601, 158005, 347611, 1738055, 2243671, 11218355, 24680381, 123401905]

約数ペア:

[(1, 123401905), (5, 24680381), (11, 11218355), (55, 2243671), (71, 1738055), (355, 347611), (781, 158005), (3905, 31601)]