12660865

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1717

約数の個数: 24

約数和(自身を含む): 18254592

約数和(自身を除く): 5593727

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 1667, 7595, 8335, 11669, 51677, 58345, 81683, 258385, 361739, 408415, 1808695, 2532173, 12660865]

約数ペア:

[(1, 12660865), (5, 2532173), (7, 1808695), (31, 408415), (35, 361739), (49, 258385), (155, 81683), (217, 58345), (245, 51677), (1085, 11669), (1519, 8335), (1667, 7595)]