5450000

素因数分解:

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

素因数の和:142

約数の個数: 60

約数和(自身を含む): 13319460

約数和(自身を除く): 7869460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 125, 200, 218, 250, 400, 436, 500, 545, 625, 872, 1000, 1090, 1250, 1744, 2000, 2180, 2500, 2725, 3125, 4360, 5000, 5450, 6250, 8720, 10000, 10900, 12500, 13625, 21800, 25000, 27250, 43600, 50000, 54500, 68125, 109000, 136250, 218000, 272500, 340625, 545000, 681250, 1090000, 1362500, 2725000, 5450000]

約数ペア:

[(1, 5450000), (2, 2725000), (4, 1362500), (5, 1090000), (8, 681250), (10, 545000), (16, 340625), (20, 272500), (25, 218000), (40, 136250), (50, 109000), (80, 68125), (100, 54500), (109, 50000), (125, 43600), (200, 27250), (218, 25000), (250, 21800), (400, 13625), (436, 12500), (500, 10900), (545, 10000), (625, 8720), (872, 6250), (1000, 5450), (1090, 5000), (1250, 4360), (1744, 3125), (2000, 2725), (2180, 2500)]