21494288800

素因数分解:

$2^5\times 5^2\times {\mathrm{26867861}}^1$

素因数の和:26867881

約数の個数: 36

約数和(自身を含む): 52472934486

約数和(自身を除く): 30978645686

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26867861, 53735722, 107471444, 134339305, 214942888, 268678610, 429885776, 537357220, 671696525, 859771552, 1074714440, 1343393050, 2149428880, 2686786100, 4298857760, 5373572200, 10747144400, 21494288800]

約数ペア:

[(1, 21494288800), (2, 10747144400), (4, 5373572200), (5, 4298857760), (8, 2686786100), (10, 2149428880), (16, 1343393050), (20, 1074714440), (25, 859771552), (32, 671696525), (40, 537357220), (50, 429885776), (80, 268678610), (100, 214942888), (160, 134339305), (200, 107471444), (400, 53735722), (800, 26867861)]