8281880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1051}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 18746640

約数和(自身を除く): 10464760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1051, 1576, 1970, 2102, 3940, 4204, 5255, 7880, 8408, 10510, 21020, 42040, 207047, 414094, 828188, 1035235, 1656376, 2070470, 4140940, 8281880]

約数ペア:

[(1, 8281880), (2, 4140940), (4, 2070470), (5, 1656376), (8, 1035235), (10, 828188), (20, 414094), (40, 207047), (197, 42040), (394, 21020), (788, 10510), (985, 8408), (1051, 7880), (1576, 5255), (1970, 4204), (2102, 3940)]