22720280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{51637}}^1$

素因数の和:51659

約数の個数: 32

約数和(自身を含む): 55769040

約数和(自身を除く): 33048760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 51637, 103274, 206548, 258185, 413096, 516370, 568007, 1032740, 1136014, 2065480, 2272028, 2840035, 4544056, 5680070, 11360140, 22720280]

約数ペア:

[(1, 22720280), (2, 11360140), (4, 5680070), (5, 4544056), (8, 2840035), (10, 2272028), (11, 2065480), (20, 1136014), (22, 1032740), (40, 568007), (44, 516370), (55, 413096), (88, 258185), (110, 206548), (220, 103274), (440, 51637)]