2225000

素因数分解:

$2^3\times 5^5\times {\mathrm{89}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 5273100

約数和(自身を除く): 3048100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 178, 200, 250, 356, 445, 500, 625, 712, 890, 1000, 1250, 1780, 2225, 2500, 3125, 3560, 4450, 5000, 6250, 8900, 11125, 12500, 17800, 22250, 25000, 44500, 55625, 89000, 111250, 222500, 278125, 445000, 556250, 1112500, 2225000]

約数ペア:

[(1, 2225000), (2, 1112500), (4, 556250), (5, 445000), (8, 278125), (10, 222500), (20, 111250), (25, 89000), (40, 55625), (50, 44500), (89, 25000), (100, 22250), (125, 17800), (178, 12500), (200, 11125), (250, 8900), (356, 6250), (445, 5000), (500, 4450), (625, 3560), (712, 3125), (890, 2500), (1000, 2225), (1250, 1780)]