203965985

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{2161}}^1$

素因数の和:2648

約数の個数: 16

約数和(自身を含む): 251137920

約数和(自身を除く): 47171935

約数列:

[1, 5, 43, 215, 439, 2161, 2195, 10805, 18877, 92923, 94385, 464615, 948679, 4743395, 40793197, 203965985]

約数ペア:

[(1, 203965985), (5, 40793197), (43, 4743395), (215, 948679), (439, 464615), (2161, 94385), (2195, 92923), (10805, 18877)]