280390990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2549009}}^1$

素因数の和:2549027

約数の個数: 16

約数和(自身を含む): 550586160

約数和(自身を除く): 270195170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2549009, 5098018, 12745045, 25490090, 28039099, 56078198, 140195495, 280390990]

約数ペア:

[(1, 280390990), (2, 140195495), (5, 56078198), (10, 28039099), (11, 25490090), (22, 12745045), (55, 5098018), (110, 2549009)]