28139288

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 54120960

約数和(自身を除く): 25981672

約数列:

[1, 2, 4, 8, 71, 107, 142, 214, 284, 428, 463, 568, 856, 926, 1852, 3704, 7597, 15194, 30388, 32873, 49541, 60776, 65746, 99082, 131492, 198164, 262984, 396328, 3517411, 7034822, 14069644, 28139288]

約数ペア:

[(1, 28139288), (2, 14069644), (4, 7034822), (8, 3517411), (71, 396328), (107, 262984), (142, 198164), (214, 131492), (284, 99082), (428, 65746), (463, 60776), (568, 49541), (856, 32873), (926, 30388), (1852, 15194), (3704, 7597)]