19707800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2011}}^1$

素因数の和:2041

約数の個数: 72

約数和(自身を含む): 53328060

約数和(自身を除く): 33620260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2011, 2450, 4022, 4900, 8044, 9800, 10055, 14077, 16088, 20110, 28154, 40220, 50275, 56308, 70385, 80440, 98539, 100550, 112616, 140770, 197078, 201100, 281540, 351925, 394156, 402200, 492695, 563080, 703850, 788312, 985390, 1407700, 1970780, 2463475, 2815400, 3941560, 4926950, 9853900, 19707800]

約数ペア:

[(1, 19707800), (2, 9853900), (4, 4926950), (5, 3941560), (7, 2815400), (8, 2463475), (10, 1970780), (14, 1407700), (20, 985390), (25, 788312), (28, 703850), (35, 563080), (40, 492695), (49, 402200), (50, 394156), (56, 351925), (70, 281540), (98, 201100), (100, 197078), (140, 140770), (175, 112616), (196, 100550), (200, 98539), (245, 80440), (280, 70385), (350, 56308), (392, 50275), (490, 40220), (700, 28154), (980, 20110), (1225, 16088), (1400, 14077), (1960, 10055), (2011, 9800), (2450, 8044), (4022, 4900)]