436000

素因数分解:

$2^5\times 5^3\times {\mathrm{109}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 1081080

約数和(自身を除く): 645080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 125, 160, 200, 218, 250, 400, 436, 500, 545, 800, 872, 1000, 1090, 1744, 2000, 2180, 2725, 3488, 4000, 4360, 5450, 8720, 10900, 13625, 17440, 21800, 27250, 43600, 54500, 87200, 109000, 218000, 436000]

約数ペア:

[(1, 436000), (2, 218000), (4, 109000), (5, 87200), (8, 54500), (10, 43600), (16, 27250), (20, 21800), (25, 17440), (32, 13625), (40, 10900), (50, 8720), (80, 5450), (100, 4360), (109, 4000), (125, 3488), (160, 2725), (200, 2180), (218, 2000), (250, 1744), (400, 1090), (436, 1000), (500, 872), (545, 800)]