28891390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{262649}}^1$

素因数の和:262667

約数の個数: 16

約数和(自身を含む): 56732400

約数和(自身を除く): 27841010

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 262649, 525298, 1313245, 2626490, 2889139, 5778278, 14445695, 28891390]

約数ペア:

[(1, 28891390), (2, 14445695), (5, 5778278), (10, 2889139), (11, 2626490), (22, 1313245), (55, 525298), (110, 262649)]