80647551

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2069}}^1$

素因数の和:2207

約数の個数: 24

約数和(自身を含む): 120126240

約数和(自身を除く): 39478689

約数列:

[1, 3, 9, 61, 71, 183, 213, 549, 639, 2069, 4331, 6207, 12993, 18621, 38979, 126209, 146899, 378627, 440697, 1135881, 1322091, 8960839, 26882517, 80647551]

約数ペア:

[(1, 80647551), (3, 26882517), (9, 8960839), (61, 1322091), (71, 1135881), (183, 440697), (213, 378627), (549, 146899), (639, 126209), (2069, 38979), (4331, 18621), (6207, 12993)]