20008478

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 35368704

約数和(自身を除く): 15360226

約数列:

[1, 2, 7, 14, 67, 83, 134, 166, 257, 469, 514, 581, 938, 1162, 1799, 3598, 5561, 11122, 17219, 21331, 34438, 38927, 42662, 77854, 120533, 149317, 241066, 298634, 1429177, 2858354, 10004239, 20008478]

約数ペア:

[(1, 20008478), (2, 10004239), (7, 2858354), (14, 1429177), (67, 298634), (83, 241066), (134, 149317), (166, 120533), (257, 77854), (469, 42662), (514, 38927), (581, 34438), (938, 21331), (1162, 17219), (1799, 11122), (3598, 5561)]