78816825

素因数分解:

$3^2\times 5^2\times {\mathrm{433}}^1\times {\mathrm{809}}^1$

素因数の和:1258

約数の個数: 36

約数和(自身を含む): 141670620

約数和(自身を除く): 62853795

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 433, 809, 1299, 2165, 2427, 3897, 4045, 6495, 7281, 10825, 12135, 19485, 20225, 32475, 36405, 60675, 97425, 182025, 350297, 1050891, 1751485, 3152673, 5254455, 8757425, 15763365, 26272275, 78816825]

約数ペア:

[(1, 78816825), (3, 26272275), (5, 15763365), (9, 8757425), (15, 5254455), (25, 3152673), (45, 1751485), (75, 1050891), (225, 350297), (433, 182025), (809, 97425), (1299, 60675), (2165, 36405), (2427, 32475), (3897, 20225), (4045, 19485), (6495, 12135), (7281, 10825)]