12646220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4549}}^1$

素因数の和:4697

約数の個数: 24

約数和(自身を含む): 26754000

約数和(自身を除く): 14107780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4549, 9098, 18196, 22745, 45490, 90980, 632311, 1264622, 2529244, 3161555, 6323110, 12646220]

約数ペア:

[(1, 12646220), (2, 6323110), (4, 3161555), (5, 2529244), (10, 1264622), (20, 632311), (139, 90980), (278, 45490), (556, 22745), (695, 18196), (1390, 9098), (2780, 4549)]