858486890

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{66601}}^1$

素因数の和:67897

約数の個数: 16

約数和(自身を含む): 1546498440

約数和(自身を除く): 688011550

約数列:

[1, 2, 5, 10, 1289, 2578, 6445, 12890, 66601, 133202, 333005, 666010, 85848689, 171697378, 429243445, 858486890]

約数ペア:

[(1, 858486890), (2, 429243445), (5, 171697378), (10, 85848689), (1289, 666010), (2578, 333005), (6445, 133202), (12890, 66601)]