545000

素因数分解:

$2^3\times 5^4\times {\mathrm{109}}^1$

素因数の和:135

約数の個数: 40

約数和(自身を含む): 1288650

約数和(自身を除く): 743650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 125, 200, 218, 250, 436, 500, 545, 625, 872, 1000, 1090, 1250, 2180, 2500, 2725, 4360, 5000, 5450, 10900, 13625, 21800, 27250, 54500, 68125, 109000, 136250, 272500, 545000]

約数ペア:

[(1, 545000), (2, 272500), (4, 136250), (5, 109000), (8, 68125), (10, 54500), (20, 27250), (25, 21800), (40, 13625), (50, 10900), (100, 5450), (109, 5000), (125, 4360), (200, 2725), (218, 2500), (250, 2180), (436, 1250), (500, 1090), (545, 1000), (625, 872)]