13181975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 17177472

約数和(自身を除く): 3995497

約数列:

[1, 5, 25, 31, 73, 155, 233, 365, 775, 1165, 1825, 2263, 5825, 7223, 11315, 17009, 36115, 56575, 85045, 180575, 425225, 527279, 2636395, 13181975]

約数ペア:

[(1, 13181975), (5, 2636395), (25, 527279), (31, 425225), (73, 180575), (155, 85045), (233, 56575), (365, 36115), (775, 17009), (1165, 11315), (1825, 7223), (2263, 5825)]