12820825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 16713216

約数和(自身を除く): 3892391

約数列:

[1, 5, 25, 31, 71, 155, 233, 355, 775, 1165, 1775, 2201, 5825, 7223, 11005, 16543, 36115, 55025, 82715, 180575, 413575, 512833, 2564165, 12820825]

約数ペア:

[(1, 12820825), (5, 2564165), (25, 512833), (31, 413575), (71, 180575), (155, 82715), (233, 55025), (355, 36115), (775, 16543), (1165, 11005), (1775, 7223), (2201, 5825)]