18289685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2437}}^1$

素因数の和:2540

約数の個数: 16

約数和(自身を含む): 23404800

約数和(自身を除く): 5115115

約数列:

[1, 5, 19, 79, 95, 395, 1501, 2437, 7505, 12185, 46303, 192523, 231515, 962615, 3657937, 18289685]

約数ペア:

[(1, 18289685), (5, 3657937), (19, 962615), (79, 231515), (95, 192523), (395, 46303), (1501, 12185), (2437, 7505)]