87216975

素因数分解:

$3^2\times 5^2\times {\mathrm{387631}}^1$

素因数の和:387647

約数の個数: 18

約数和(自身を含む): 156215696

約数和(自身を除く): 68998721

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 387631, 1162893, 1938155, 3488679, 5814465, 9690775, 17443395, 29072325, 87216975]

約数ペア:

[(1, 87216975), (3, 29072325), (5, 17443395), (9, 9690775), (15, 5814465), (25, 3488679), (45, 1938155), (75, 1162893), (225, 387631)]