28205008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{135601}}^1$

素因数の和:135622

約数の個数: 20

約数和(自身を含む): 58851268

約数和(自身を除く): 30646260

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 135601, 271202, 542404, 1084808, 1762813, 2169616, 3525626, 7051252, 14102504, 28205008]

約数ペア:

[(1, 28205008), (2, 14102504), (4, 7051252), (8, 3525626), (13, 2169616), (16, 1762813), (26, 1084808), (52, 542404), (104, 271202), (208, 135601)]