19600

素因数分解:

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

素因数の和:32

約数の個数: 45

約数和(自身を含む): 54777

約数和(自身を除く): 35177

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600]

約数ペア:

[(1, 19600), (2, 9800), (4, 4900), (5, 3920), (7, 2800), (8, 2450), (10, 1960), (14, 1400), (16, 1225), (20, 980), (25, 784), (28, 700), (35, 560), (40, 490), (49, 400), (50, 392), (56, 350), (70, 280), (80, 245), (98, 200), (100, 196), (112, 175)]