25789712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{123989}}^1$

素因数の和:124010

約数の個数: 20

約数和(自身を含む): 53811660

約数和(自身を除く): 28021948

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 123989, 247978, 495956, 991912, 1611857, 1983824, 3223714, 6447428, 12894856, 25789712]

約数ペア:

[(1, 25789712), (2, 12894856), (4, 6447428), (8, 3223714), (13, 1983824), (16, 1611857), (26, 991912), (52, 495956), (104, 247978), (208, 123989)]