128520255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{504001}}^1$

素因数の和:504026

約数の個数: 16

約数和(自身を含む): 217728864

約数和(自身を除く): 89208609

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 504001, 1512003, 2520005, 7560015, 8568017, 25704051, 42840085, 128520255]

約数ペア:

[(1, 128520255), (3, 42840085), (5, 25704051), (15, 8568017), (17, 7560015), (51, 2520005), (85, 1512003), (255, 504001)]