128161885

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1\times {\mathrm{503}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 155675520

約数和(自身を除く): 27513635

約数列:

[1, 5, 131, 389, 503, 655, 1945, 2515, 50959, 65893, 195667, 254795, 329465, 978335, 25632377, 128161885]

約数ペア:

[(1, 128161885), (5, 25632377), (131, 978335), (389, 329465), (503, 254795), (655, 195667), (1945, 65893), (2515, 50959)]