21139900400

素因数分解:

$2^4\times 5^2\times {\mathrm{52849751}}^1$

素因数の和:52849769

約数の個数: 30

約数和(自身を含む): 50788611672

約数和(自身を除く): 29648711272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52849751, 105699502, 211399004, 264248755, 422798008, 528497510, 845596016, 1056995020, 1321243775, 2113990040, 2642487550, 4227980080, 5284975100, 10569950200, 21139900400]

約数ペア:

[(1, 21139900400), (2, 10569950200), (4, 5284975100), (5, 4227980080), (8, 2642487550), (10, 2113990040), (16, 1321243775), (20, 1056995020), (25, 845596016), (40, 528497510), (50, 422798008), (80, 264248755), (100, 211399004), (200, 105699502), (400, 52849751)]