71243145

素因数分解:

$3^4\times 5^1\times {\mathrm{175909}}^1$

素因数の和:175926

約数の個数: 20

約数和(自身を含む): 127710660

約数和(自身を除く): 56467515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 175909, 527727, 879545, 1583181, 2638635, 4749543, 7915905, 14248629, 23747715, 71243145]

約数ペア:

[(1, 71243145), (3, 23747715), (5, 14248629), (9, 7915905), (15, 4749543), (27, 2638635), (45, 1583181), (81, 879545), (135, 527727), (405, 175909)]