207720620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{21067}}^1$

素因数の和:21122

約数の個数: 48

約数和(自身を含む): 477822240

約数和(自身を除く): 270101620

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 21067, 42134, 84268, 105335, 210670, 358139, 421340, 610943, 716278, 1221886, 1432556, 1790695, 2443772, 3054715, 3581390, 6109430, 7162780, 10386031, 12218860, 20772062, 41544124, 51930155, 103860310, 207720620]

約数ペア:

[(1, 207720620), (2, 103860310), (4, 51930155), (5, 41544124), (10, 20772062), (17, 12218860), (20, 10386031), (29, 7162780), (34, 6109430), (58, 3581390), (68, 3054715), (85, 2443772), (116, 1790695), (145, 1432556), (170, 1221886), (290, 716278), (340, 610943), (493, 421340), (580, 358139), (986, 210670), (1972, 105335), (2465, 84268), (4930, 42134), (9860, 21067)]