39200

素因数分解:

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

素因数の和:34

約数の個数: 54

約数和(自身を含む): 111321

約数和(自身を除く): 72121

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 350, 392, 400, 490, 560, 700, 784, 800, 980, 1120, 1225, 1400, 1568, 1960, 2450, 2800, 3920, 4900, 5600, 7840, 9800, 19600, 39200]

約数ペア:

[(1, 39200), (2, 19600), (4, 9800), (5, 7840), (7, 5600), (8, 4900), (10, 3920), (14, 2800), (16, 2450), (20, 1960), (25, 1568), (28, 1400), (32, 1225), (35, 1120), (40, 980), (49, 800), (50, 784), (56, 700), (70, 560), (80, 490), (98, 400), (100, 392), (112, 350), (140, 280), (160, 245), (175, 224), (196, 200)]