561920

素因数分解:

$2^8\times 5^1\times {\mathrm{439}}^1$

素因数の和:460

約数の個数: 36

約数和(自身を含む): 1349040

約数和(自身を除く): 787120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 439, 640, 878, 1280, 1756, 2195, 3512, 4390, 7024, 8780, 14048, 17560, 28096, 35120, 56192, 70240, 112384, 140480, 280960, 561920]

約数ペア:

[(1, 561920), (2, 280960), (4, 140480), (5, 112384), (8, 70240), (10, 56192), (16, 35120), (20, 28096), (32, 17560), (40, 14048), (64, 8780), (80, 7024), (128, 4390), (160, 3512), (256, 2195), (320, 1756), (439, 1280), (640, 878)]