25668656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{123407}}^1$

素因数の和:123428

約数の個数: 20

約数和(自身を含む): 53559072

約数和(自身を除く): 27890416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 123407, 246814, 493628, 987256, 1604291, 1974512, 3208582, 6417164, 12834328, 25668656]

約数ペア:

[(1, 25668656), (2, 12834328), (4, 6417164), (8, 3208582), (13, 1974512), (16, 1604291), (26, 987256), (52, 493628), (104, 246814), (208, 123407)]