1290985874

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{67499}}^1$

素因数の和:67705

約数の個数: 16

約数和(自身を含む): 1978020000

約数和(自身を除く): 687034126

約数列:

[1, 2, 73, 131, 146, 262, 9563, 19126, 67499, 134998, 4927427, 8842369, 9854854, 17684738, 645492937, 1290985874]

約数ペア:

[(1, 1290985874), (2, 645492937), (73, 17684738), (131, 9854854), (146, 8842369), (262, 4927427), (9563, 134998), (19126, 67499)]