20489320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22271}}^1$

素因数の和:22305

約数の個数: 32

約数和(自身を含む): 48107520

約数和(自身を除く): 27618200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22271, 44542, 89084, 111355, 178168, 222710, 445420, 512233, 890840, 1024466, 2048932, 2561165, 4097864, 5122330, 10244660, 20489320]

約数ペア:

[(1, 20489320), (2, 10244660), (4, 5122330), (5, 4097864), (8, 2561165), (10, 2048932), (20, 1024466), (23, 890840), (40, 512233), (46, 445420), (92, 222710), (115, 178168), (184, 111355), (230, 89084), (460, 44542), (920, 22271)]