20518272

素因数分解:

$2^7\times 3^4\times {\mathrm{1979}}^1$

素因数の和:2005

約数の個数: 80

約数和(自身を含む): 61092900

約数和(自身を除く): 40574628

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 1979, 2592, 3456, 3958, 5184, 5937, 7916, 10368, 11874, 15832, 17811, 23748, 31664, 35622, 47496, 53433, 63328, 71244, 94992, 106866, 126656, 142488, 160299, 189984, 213732, 253312, 284976, 320598, 379968, 427464, 569952, 641196, 759936, 854928, 1139904, 1282392, 1709856, 2279808, 2564784, 3419712, 5129568, 6839424, 10259136, 20518272]

約数ペア:

[(1, 20518272), (2, 10259136), (3, 6839424), (4, 5129568), (6, 3419712), (8, 2564784), (9, 2279808), (12, 1709856), (16, 1282392), (18, 1139904), (24, 854928), (27, 759936), (32, 641196), (36, 569952), (48, 427464), (54, 379968), (64, 320598), (72, 284976), (81, 253312), (96, 213732), (108, 189984), (128, 160299), (144, 142488), (162, 126656), (192, 106866), (216, 94992), (288, 71244), (324, 63328), (384, 53433), (432, 47496), (576, 35622), (648, 31664), (864, 23748), (1152, 17811), (1296, 15832), (1728, 11874), (1979, 10368), (2592, 7916), (3456, 5937), (3958, 5184)]