20492769280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2001247}}^1$

素因数の和:2001274

約数の個数: 48

約数和(自身を含む): 49170663360

約数和(自身を除く): 28677894080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 2001247, 4002494, 8004988, 10006235, 16009976, 20012470, 32019952, 40024940, 64039904, 80049880, 128079808, 160099760, 256159616, 320199520, 512319232, 640399040, 1024638464, 1280798080, 2049276928, 2561596160, 4098553856, 5123192320, 10246384640, 20492769280]

約数ペア:

[(1, 20492769280), (2, 10246384640), (4, 5123192320), (5, 4098553856), (8, 2561596160), (10, 2049276928), (16, 1280798080), (20, 1024638464), (32, 640399040), (40, 512319232), (64, 320199520), (80, 256159616), (128, 160099760), (160, 128079808), (256, 80049880), (320, 64039904), (512, 40024940), (640, 32019952), (1024, 20012470), (1280, 16009976), (2048, 10006235), (2560, 8004988), (5120, 4002494), (10240, 2001247)]