3920000

素因数分解:

$2^7\times 5^4\times 7^2$

素因数の和:48

約数の個数: 120

約数和(自身を含む): 11351835

約数和(自身を除く): 7431835

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 125, 128, 140, 160, 175, 196, 200, 224, 245, 250, 280, 320, 350, 392, 400, 448, 490, 500, 560, 625, 640, 700, 784, 800, 875, 896, 980, 1000, 1120, 1225, 1250, 1400, 1568, 1600, 1750, 1960, 2000, 2240, 2450, 2500, 2800, 3136, 3200, 3500, 3920, 4000, 4375, 4480, 4900, 5000, 5600, 6125, 6272, 7000, 7840, 8000, 8750, 9800, 10000, 11200, 12250, 14000, 15680, 16000, 17500, 19600, 20000, 22400, 24500, 28000, 30625, 31360, 35000, 39200, 40000, 49000, 56000, 61250, 70000, 78400, 80000, 98000, 112000, 122500, 140000, 156800, 196000, 245000, 280000, 392000, 490000, 560000, 784000, 980000, 1960000, 3920000]

約数ペア:

[(1, 3920000), (2, 1960000), (4, 980000), (5, 784000), (7, 560000), (8, 490000), (10, 392000), (14, 280000), (16, 245000), (20, 196000), (25, 156800), (28, 140000), (32, 122500), (35, 112000), (40, 98000), (49, 80000), (50, 78400), (56, 70000), (64, 61250), (70, 56000), (80, 49000), (98, 40000), (100, 39200), (112, 35000), (125, 31360), (128, 30625), (140, 28000), (160, 24500), (175, 22400), (196, 20000), (200, 19600), (224, 17500), (245, 16000), (250, 15680), (280, 14000), (320, 12250), (350, 11200), (392, 10000), (400, 9800), (448, 8750), (490, 8000), (500, 7840), (560, 7000), (625, 6272), (640, 6125), (700, 5600), (784, 5000), (800, 4900), (875, 4480), (896, 4375), (980, 4000), (1000, 3920), (1120, 3500), (1225, 3200), (1250, 3136), (1400, 2800), (1568, 2500), (1600, 2450), (1750, 2240), (1960, 2000)]