2222500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{127}}^1$

素因数の和:158

約数の個数: 60

約数和(自身を含む): 5598208

約数和(自身を除く): 3375708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 127, 140, 175, 250, 254, 350, 500, 508, 625, 635, 700, 875, 889, 1250, 1270, 1750, 1778, 2500, 2540, 3175, 3500, 3556, 4375, 4445, 6350, 8750, 8890, 12700, 15875, 17500, 17780, 22225, 31750, 44450, 63500, 79375, 88900, 111125, 158750, 222250, 317500, 444500, 555625, 1111250, 2222500]

約数ペア:

[(1, 2222500), (2, 1111250), (4, 555625), (5, 444500), (7, 317500), (10, 222250), (14, 158750), (20, 111125), (25, 88900), (28, 79375), (35, 63500), (50, 44450), (70, 31750), (100, 22225), (125, 17780), (127, 17500), (140, 15875), (175, 12700), (250, 8890), (254, 8750), (350, 6350), (500, 4445), (508, 4375), (625, 3556), (635, 3500), (700, 3175), (875, 2540), (889, 2500), (1250, 1778), (1270, 1750)]