66720280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151637}}^1$

素因数の和:151659

約数の個数: 32

約数和(自身を含む): 163769040

約数和(自身を除く): 97048760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 151637, 303274, 606548, 758185, 1213096, 1516370, 1668007, 3032740, 3336014, 6065480, 6672028, 8340035, 13344056, 16680070, 33360140, 66720280]

約数ペア:

[(1, 66720280), (2, 33360140), (4, 16680070), (5, 13344056), (8, 8340035), (10, 6672028), (11, 6065480), (20, 3336014), (22, 3032740), (40, 1668007), (44, 1516370), (55, 1213096), (88, 758185), (110, 606548), (220, 303274), (440, 151637)]