4400990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40009}}^1$

素因数の和:40027

約数の個数: 16

約数和(自身を含む): 8642160

約数和(自身を除く): 4241170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 40009, 80018, 200045, 400090, 440099, 880198, 2200495, 4400990]

約数ペア:

[(1, 4400990), (2, 2200495), (5, 880198), (10, 440099), (11, 400090), (22, 200045), (55, 80018), (110, 40009)]