12661540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4621}}^1$

素因数の和:4767

約数の個数: 24

約数和(自身を含む): 26789112

約数和(自身を除く): 14127572

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 4621, 9242, 18484, 23105, 46210, 92420, 633077, 1266154, 2532308, 3165385, 6330770, 12661540]

約数ペア:

[(1, 12661540), (2, 6330770), (4, 3165385), (5, 2532308), (10, 1266154), (20, 633077), (137, 92420), (274, 46210), (548, 23105), (685, 18484), (1370, 9242), (2740, 4621)]