21254800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7591}}^1$

素因数の和:7616

約数の個数: 60

約数和(自身を含む): 58367296

約数和(自身を除く): 37112496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7591, 15182, 30364, 37955, 53137, 60728, 75910, 106274, 121456, 151820, 189775, 212548, 265685, 303640, 379550, 425096, 531370, 607280, 759100, 850192, 1062740, 1328425, 1518200, 2125480, 2656850, 3036400, 4250960, 5313700, 10627400, 21254800]

約数ペア:

[(1, 21254800), (2, 10627400), (4, 5313700), (5, 4250960), (7, 3036400), (8, 2656850), (10, 2125480), (14, 1518200), (16, 1328425), (20, 1062740), (25, 850192), (28, 759100), (35, 607280), (40, 531370), (50, 425096), (56, 379550), (70, 303640), (80, 265685), (100, 212548), (112, 189775), (140, 151820), (175, 121456), (200, 106274), (280, 75910), (350, 60728), (400, 53137), (560, 37955), (700, 30364), (1400, 15182), (2800, 7591)]