19985288605

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1605889}}^1$

素因数の和:1606044

約数の個数: 16

約数和(自身を含む): 25437297600

約数和(自身を除く): 5452008995

約数列:

[1, 5, 19, 95, 131, 655, 2489, 12445, 1605889, 8029445, 30511891, 152559455, 210371459, 1051857295, 3997057721, 19985288605]

約数ペア:

[(1, 19985288605), (5, 3997057721), (19, 1051857295), (95, 210371459), (131, 152559455), (655, 30511891), (2489, 8029445), (12445, 1605889)]