25459408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122401}}^1$

素因数の和:122422

約数の個数: 20

約数和(自身を含む): 53122468

約数和(自身を除く): 27663060

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122401, 244802, 489604, 979208, 1591213, 1958416, 3182426, 6364852, 12729704, 25459408]

約数ペア:

[(1, 25459408), (2, 12729704), (4, 6364852), (8, 3182426), (13, 1958416), (16, 1591213), (26, 979208), (52, 489604), (104, 244802), (208, 122401)]