666985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 16

約数和(自身を含む): 891072

約数和(自身を除く): 224087

約数列:

[1, 5, 11, 55, 67, 181, 335, 737, 905, 1991, 3685, 9955, 12127, 60635, 133397, 666985]

約数ペア:

[(1, 666985), (5, 133397), (11, 60635), (55, 12127), (67, 9955), (181, 3685), (335, 1991), (737, 905)]