20009884

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 39160800

約数和(自身を除く): 19150916

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 73, 116, 139, 146, 278, 292, 493, 556, 986, 1241, 1972, 2117, 2363, 2482, 4031, 4234, 4726, 4964, 8062, 8468, 9452, 10147, 16124, 20294, 35989, 40588, 68527, 71978, 137054, 143956, 172499, 274108, 294263, 344998, 588526, 689996, 1177052, 5002471, 10004942, 20009884]

約数ペア:

[(1, 20009884), (2, 10004942), (4, 5002471), (17, 1177052), (29, 689996), (34, 588526), (58, 344998), (68, 294263), (73, 274108), (116, 172499), (139, 143956), (146, 137054), (278, 71978), (292, 68527), (493, 40588), (556, 35989), (986, 20294), (1241, 16124), (1972, 10147), (2117, 9452), (2363, 8468), (2482, 8062), (4031, 4964), (4234, 4726)]