12677980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 30695616

約数和(自身を除く): 18017636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 661, 685, 959, 1322, 1370, 1918, 2644, 2740, 3305, 3836, 4627, 4795, 6610, 9254, 9590, 13220, 18508, 19180, 23135, 46270, 90557, 92540, 181114, 362228, 452785, 633899, 905570, 1267798, 1811140, 2535596, 3169495, 6338990, 12677980]

約数ペア:

[(1, 12677980), (2, 6338990), (4, 3169495), (5, 2535596), (7, 1811140), (10, 1267798), (14, 905570), (20, 633899), (28, 452785), (35, 362228), (70, 181114), (137, 92540), (140, 90557), (274, 46270), (548, 23135), (661, 19180), (685, 18508), (959, 13220), (1322, 9590), (1370, 9254), (1918, 6610), (2644, 4795), (2740, 4627), (3305, 3836)]