120812800

素因数分解:

$2^8\times 5^2\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 108

約数和(自身を含む): 306681760

約数和(自身を除く): 185868960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 128, 160, 172, 200, 215, 256, 320, 344, 400, 430, 439, 640, 688, 800, 860, 878, 1075, 1280, 1376, 1600, 1720, 1756, 2150, 2195, 2752, 3200, 3440, 3512, 4300, 4390, 5504, 6400, 6880, 7024, 8600, 8780, 10975, 11008, 13760, 14048, 17200, 17560, 18877, 21950, 27520, 28096, 34400, 35120, 37754, 43900, 55040, 56192, 68800, 70240, 75508, 87800, 94385, 112384, 137600, 140480, 151016, 175600, 188770, 275200, 280960, 302032, 351200, 377540, 471925, 561920, 604064, 702400, 755080, 943850, 1208128, 1404800, 1510160, 1887700, 2416256, 2809600, 3020320, 3775400, 4832512, 6040640, 7550800, 12081280, 15101600, 24162560, 30203200, 60406400, 120812800]

約数ペア:

[(1, 120812800), (2, 60406400), (4, 30203200), (5, 24162560), (8, 15101600), (10, 12081280), (16, 7550800), (20, 6040640), (25, 4832512), (32, 3775400), (40, 3020320), (43, 2809600), (50, 2416256), (64, 1887700), (80, 1510160), (86, 1404800), (100, 1208128), (128, 943850), (160, 755080), (172, 702400), (200, 604064), (215, 561920), (256, 471925), (320, 377540), (344, 351200), (400, 302032), (430, 280960), (439, 275200), (640, 188770), (688, 175600), (800, 151016), (860, 140480), (878, 137600), (1075, 112384), (1280, 94385), (1376, 87800), (1600, 75508), (1720, 70240), (1756, 68800), (2150, 56192), (2195, 55040), (2752, 43900), (3200, 37754), (3440, 35120), (3512, 34400), (4300, 28096), (4390, 27520), (5504, 21950), (6400, 18877), (6880, 17560), (7024, 17200), (8600, 14048), (8780, 13760), (10975, 11008)]