81957280

素因数分解:

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

素因数の和:22309

約数の個数: 48

約数和(自身を含む): 202051584

約数和(自身を除く): 120094304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 22271, 44542, 89084, 111355, 178168, 222710, 356336, 445420, 512233, 712672, 890840, 1024466, 1781680, 2048932, 2561165, 3563360, 4097864, 5122330, 8195728, 10244660, 16391456, 20489320, 40978640, 81957280]

約数ペア:

[(1, 81957280), (2, 40978640), (4, 20489320), (5, 16391456), (8, 10244660), (10, 8195728), (16, 5122330), (20, 4097864), (23, 3563360), (32, 2561165), (40, 2048932), (46, 1781680), (80, 1024466), (92, 890840), (115, 712672), (160, 512233), (184, 445420), (230, 356336), (368, 222710), (460, 178168), (736, 111355), (920, 89084), (1840, 44542), (3680, 22271)]