28070000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{401}}^1$

素因数の和:436

約数の個数: 100

約数和(自身を含む): 77862576

約数和(自身を除く): 49792576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 401, 500, 560, 625, 700, 802, 875, 1000, 1250, 1400, 1604, 1750, 2000, 2005, 2500, 2800, 2807, 3208, 3500, 4010, 4375, 5000, 5614, 6416, 7000, 8020, 8750, 10000, 10025, 11228, 14000, 14035, 16040, 17500, 20050, 22456, 28070, 32080, 35000, 40100, 44912, 50125, 56140, 70000, 70175, 80200, 100250, 112280, 140350, 160400, 200500, 224560, 250625, 280700, 350875, 401000, 501250, 561400, 701750, 802000, 1002500, 1122800, 1403500, 1754375, 2005000, 2807000, 3508750, 4010000, 5614000, 7017500, 14035000, 28070000]

約数ペア:

[(1, 28070000), (2, 14035000), (4, 7017500), (5, 5614000), (7, 4010000), (8, 3508750), (10, 2807000), (14, 2005000), (16, 1754375), (20, 1403500), (25, 1122800), (28, 1002500), (35, 802000), (40, 701750), (50, 561400), (56, 501250), (70, 401000), (80, 350875), (100, 280700), (112, 250625), (125, 224560), (140, 200500), (175, 160400), (200, 140350), (250, 112280), (280, 100250), (350, 80200), (400, 70175), (401, 70000), (500, 56140), (560, 50125), (625, 44912), (700, 40100), (802, 35000), (875, 32080), (1000, 28070), (1250, 22456), (1400, 20050), (1604, 17500), (1750, 16040), (2000, 14035), (2005, 14000), (2500, 11228), (2800, 10025), (2807, 10000), (3208, 8750), (3500, 8020), (4010, 7000), (4375, 6416), (5000, 5614)]