12987925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 17434400

約数和(自身を除く): 4446475

約数列:

[1, 5, 19, 25, 37, 95, 185, 475, 703, 739, 925, 3515, 3695, 14041, 17575, 18475, 27343, 70205, 136715, 351025, 519517, 683575, 2597585, 12987925]

約数ペア:

[(1, 12987925), (5, 2597585), (19, 683575), (25, 519517), (37, 351025), (95, 136715), (185, 70205), (475, 27343), (703, 18475), (739, 17575), (925, 14041), (3515, 3695)]