20930056

素因数分解:

$2^3\times 7^2\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 46170000

約数和(自身を除く): 25239944

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 107, 196, 214, 392, 428, 499, 749, 856, 998, 1498, 1996, 2996, 3493, 3992, 5243, 5992, 6986, 10486, 13972, 20972, 24451, 27944, 41944, 48902, 53393, 97804, 106786, 195608, 213572, 373751, 427144, 747502, 1495004, 2616257, 2990008, 5232514, 10465028, 20930056]

約数ペア:

[(1, 20930056), (2, 10465028), (4, 5232514), (7, 2990008), (8, 2616257), (14, 1495004), (28, 747502), (49, 427144), (56, 373751), (98, 213572), (107, 195608), (196, 106786), (214, 97804), (392, 53393), (428, 48902), (499, 41944), (749, 27944), (856, 24451), (998, 20972), (1498, 13972), (1996, 10486), (2996, 6986), (3493, 5992), (3992, 5243)]