280210000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{4003}}^1$

素因数の和:4038

約数の個数: 100

約数和(自身を含む): 775526752

約数和(自身を除く): 495316752

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, 500, 560, 625, 700, 875, 1000, 1250, 1400, 1750, 2000, 2500, 2800, 3500, 4003, 4375, 5000, 7000, 8006, 8750, 10000, 14000, 16012, 17500, 20015, 28021, 32024, 35000, 40030, 56042, 64048, 70000, 80060, 100075, 112084, 140105, 160120, 200150, 224168, 280210, 320240, 400300, 448336, 500375, 560420, 700525, 800600, 1000750, 1120840, 1401050, 1601200, 2001500, 2241680, 2501875, 2802100, 3502625, 4003000, 5003750, 5604200, 7005250, 8006000, 10007500, 11208400, 14010500, 17513125, 20015000, 28021000, 35026250, 40030000, 56042000, 70052500, 140105000, 280210000]

約数ペア:

[(1, 280210000), (2, 140105000), (4, 70052500), (5, 56042000), (7, 40030000), (8, 35026250), (10, 28021000), (14, 20015000), (16, 17513125), (20, 14010500), (25, 11208400), (28, 10007500), (35, 8006000), (40, 7005250), (50, 5604200), (56, 5003750), (70, 4003000), (80, 3502625), (100, 2802100), (112, 2501875), (125, 2241680), (140, 2001500), (175, 1601200), (200, 1401050), (250, 1120840), (280, 1000750), (350, 800600), (400, 700525), (500, 560420), (560, 500375), (625, 448336), (700, 400300), (875, 320240), (1000, 280210), (1250, 224168), (1400, 200150), (1750, 160120), (2000, 140105), (2500, 112084), (2800, 100075), (3500, 80060), (4003, 70000), (4375, 64048), (5000, 56042), (7000, 40030), (8006, 35000), (8750, 32024), (10000, 28021), (14000, 20015), (16012, 17500)]