2807000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{401}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 7525440

約数和(自身を除く): 4718440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 401, 500, 700, 802, 875, 1000, 1400, 1604, 1750, 2005, 2807, 3208, 3500, 4010, 5614, 7000, 8020, 10025, 11228, 14035, 16040, 20050, 22456, 28070, 40100, 50125, 56140, 70175, 80200, 100250, 112280, 140350, 200500, 280700, 350875, 401000, 561400, 701750, 1403500, 2807000]

約数ペア:

[(1, 2807000), (2, 1403500), (4, 701750), (5, 561400), (7, 401000), (8, 350875), (10, 280700), (14, 200500), (20, 140350), (25, 112280), (28, 100250), (35, 80200), (40, 70175), (50, 56140), (56, 50125), (70, 40100), (100, 28070), (125, 22456), (140, 20050), (175, 16040), (200, 14035), (250, 11228), (280, 10025), (350, 8020), (401, 7000), (500, 5614), (700, 4010), (802, 3500), (875, 3208), (1000, 2807), (1400, 2005), (1604, 1750)]