87217155

素因数分解:

$3^4\times 5^1\times {\mathrm{215351}}^1$

素因数の和:215368

約数の個数: 20

約数和(自身を含む): 156345552

約数和(自身を除く): 69128397

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 215351, 646053, 1076755, 1938159, 3230265, 5814477, 9690795, 17443431, 29072385, 87217155]

約数ペア:

[(1, 87217155), (3, 29072385), (5, 17443431), (9, 9690795), (15, 5814477), (27, 3230265), (45, 1938159), (81, 1076755), (135, 646053), (405, 215351)]