64721825

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5209}}^1$

素因数の和:5297

約数の個数: 24

約数和(自身を含む): 93029760

約数和(自身を除く): 28307935

約数列:

[1, 5, 7, 25, 35, 71, 175, 355, 497, 1775, 2485, 5209, 12425, 26045, 36463, 130225, 182315, 369839, 911575, 1849195, 2588873, 9245975, 12944365, 64721825]

約数ペア:

[(1, 64721825), (5, 12944365), (7, 9245975), (25, 2588873), (35, 1849195), (71, 911575), (175, 369839), (355, 182315), (497, 130225), (1775, 36463), (2485, 26045), (5209, 12425)]