20175568

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:552

約数の個数: 60

約数和(自身を含む): 47244000

約数和(自身を除く): 27068432

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 361, 499, 532, 722, 998, 1064, 1444, 1996, 2128, 2527, 2888, 3493, 3992, 5054, 5776, 6986, 7984, 9481, 10108, 13972, 18962, 20216, 27944, 37924, 40432, 55888, 66367, 75848, 132734, 151696, 180139, 265468, 360278, 530936, 720556, 1061872, 1260973, 1441112, 2521946, 2882224, 5043892, 10087784, 20175568]

約数ペア:

[(1, 20175568), (2, 10087784), (4, 5043892), (7, 2882224), (8, 2521946), (14, 1441112), (16, 1260973), (19, 1061872), (28, 720556), (38, 530936), (56, 360278), (76, 265468), (112, 180139), (133, 151696), (152, 132734), (266, 75848), (304, 66367), (361, 55888), (499, 40432), (532, 37924), (722, 27944), (998, 20216), (1064, 18962), (1444, 13972), (1996, 10108), (2128, 9481), (2527, 7984), (2888, 6986), (3493, 5776), (3992, 5054)]