28082780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127649}}^1$

素因数の和:127669

約数の個数: 24

約数和(自身を含む): 64335600

約数和(自身を除く): 36252820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127649, 255298, 510596, 638245, 1276490, 1404139, 2552980, 2808278, 5616556, 7020695, 14041390, 28082780]

約数ペア:

[(1, 28082780), (2, 14041390), (4, 7020695), (5, 5616556), (10, 2808278), (11, 2552980), (20, 1404139), (22, 1276490), (44, 638245), (55, 510596), (110, 255298), (220, 127649)]