686444944

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{1721}}^1$

素因数の和:2083

約数の個数: 40

約数和(自身を含む): 1349710488

約数和(自身を除く): 663265544

約数列:

[1, 2, 4, 8, 16, 97, 194, 257, 388, 514, 776, 1028, 1552, 1721, 2056, 3442, 4112, 6884, 13768, 24929, 27536, 49858, 99716, 166937, 199432, 333874, 398864, 442297, 667748, 884594, 1335496, 1769188, 2670992, 3538376, 7076752, 42902809, 85805618, 171611236, 343222472, 686444944]

約数ペア:

[(1, 686444944), (2, 343222472), (4, 171611236), (8, 85805618), (16, 42902809), (97, 7076752), (194, 3538376), (257, 2670992), (388, 1769188), (514, 1335496), (776, 884594), (1028, 667748), (1552, 442297), (1721, 398864), (2056, 333874), (3442, 199432), (4112, 166937), (6884, 99716), (13768, 49858), (24929, 27536)]