12505940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8807}}^1$

素因数の和:8887

約数の個数: 24

約数和(自身を含む): 26635392

約数和(自身を除く): 14129452

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8807, 17614, 35228, 44035, 88070, 176140, 625297, 1250594, 2501188, 3126485, 6252970, 12505940]

約数ペア:

[(1, 12505940), (2, 6252970), (4, 3126485), (5, 2501188), (10, 1250594), (20, 625297), (71, 176140), (142, 88070), (284, 44035), (355, 35228), (710, 17614), (1420, 8807)]