2877985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 3907008

約数和(自身を除く): 1029023

約数列:

[1, 5, 11, 55, 67, 71, 121, 335, 355, 605, 737, 781, 3685, 3905, 4757, 8107, 8591, 23785, 40535, 42955, 52327, 261635, 575597, 2877985]

約数ペア:

[(1, 2877985), (5, 575597), (11, 261635), (55, 52327), (67, 42955), (71, 40535), (121, 23785), (335, 8591), (355, 8107), (605, 4757), (737, 3905), (781, 3685)]