12900995

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 15979680

約数和(自身を除く): 3078685

約数列:

[1, 5, 53, 89, 265, 445, 547, 2735, 4717, 23585, 28991, 48683, 144955, 243415, 2580199, 12900995]

約数ペア:

[(1, 12900995), (5, 2580199), (53, 243415), (89, 144955), (265, 48683), (445, 28991), (547, 23585), (2735, 4717)]