28405076

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 60480000

約数和(自身を除く): 32074924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 107, 133, 214, 266, 428, 499, 532, 749, 998, 1498, 1996, 2033, 2996, 3493, 4066, 6986, 8132, 9481, 13972, 14231, 18962, 28462, 37924, 53393, 56924, 66367, 106786, 132734, 213572, 265468, 373751, 747502, 1014467, 1495004, 2028934, 4057868, 7101269, 14202538, 28405076]

約数ペア:

[(1, 28405076), (2, 14202538), (4, 7101269), (7, 4057868), (14, 2028934), (19, 1495004), (28, 1014467), (38, 747502), (76, 373751), (107, 265468), (133, 213572), (214, 132734), (266, 106786), (428, 66367), (499, 56924), (532, 53393), (749, 37924), (998, 28462), (1498, 18962), (1996, 14231), (2033, 13972), (2996, 9481), (3493, 8132), (4066, 6986)]