287703040

素因数分解:

$2^{17}\times 5^1\times {\mathrm{439}}^1$

素因数の和:478

約数の個数: 72

約数和(自身を含む): 692057520

約数和(自身を除く): 404354480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 439, 512, 640, 878, 1024, 1280, 1756, 2048, 2195, 2560, 3512, 4096, 4390, 5120, 7024, 8192, 8780, 10240, 14048, 16384, 17560, 20480, 28096, 32768, 35120, 40960, 56192, 65536, 70240, 81920, 112384, 131072, 140480, 163840, 224768, 280960, 327680, 449536, 561920, 655360, 899072, 1123840, 1798144, 2247680, 3596288, 4495360, 7192576, 8990720, 14385152, 17981440, 28770304, 35962880, 57540608, 71925760, 143851520, 287703040]

約数ペア:

[(1, 287703040), (2, 143851520), (4, 71925760), (5, 57540608), (8, 35962880), (10, 28770304), (16, 17981440), (20, 14385152), (32, 8990720), (40, 7192576), (64, 4495360), (80, 3596288), (128, 2247680), (160, 1798144), (256, 1123840), (320, 899072), (439, 655360), (512, 561920), (640, 449536), (878, 327680), (1024, 280960), (1280, 224768), (1756, 163840), (2048, 140480), (2195, 131072), (2560, 112384), (3512, 81920), (4096, 70240), (4390, 65536), (5120, 56192), (7024, 40960), (8192, 35120), (8780, 32768), (10240, 28096), (14048, 20480), (16384, 17560)]