27500005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9839}}^1$

素因数の和:9900

約数の個数: 16

約数和(自身を含む): 36368640

約数和(自身を除く): 8868635

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 9839, 49195, 127907, 423077, 639535, 2115385, 5500001, 27500005]

約数ペア:

[(1, 27500005), (5, 5500001), (13, 2115385), (43, 639535), (65, 423077), (215, 127907), (559, 49195), (2795, 9839)]