278753072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1340159}}^1$

素因数の和:1340180

約数の個数: 20

約数和(自身を含む): 581629440

約数和(自身を除く): 302876368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1340159, 2680318, 5360636, 10721272, 17422067, 21442544, 34844134, 69688268, 139376536, 278753072]

約数ペア:

[(1, 278753072), (2, 139376536), (4, 69688268), (8, 34844134), (13, 21442544), (16, 17422067), (26, 10721272), (52, 5360636), (104, 2680318), (208, 1340159)]