257430308

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{7039}}^1$

素因数の和:7307

約数の個数: 24

約数和(自身を含む): 463626240

約数和(自身を除く): 206195932

約数列:

[1, 2, 4, 41, 82, 164, 223, 446, 892, 7039, 9143, 14078, 18286, 28156, 36572, 288599, 577198, 1154396, 1569697, 3139394, 6278788, 64357577, 128715154, 257430308]

約数ペア:

[(1, 257430308), (2, 128715154), (4, 64357577), (41, 6278788), (82, 3139394), (164, 1569697), (223, 1154396), (446, 577198), (892, 288599), (7039, 36572), (9143, 28156), (14078, 18286)]