1020255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4026

約数の個数: 16

約数和(自身を含む): 1728864

約数和(自身を除く): 708609

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 4001, 12003, 20005, 60015, 68017, 204051, 340085, 1020255]

約数ペア:

[(1, 1020255), (3, 340085), (5, 204051), (15, 68017), (17, 60015), (51, 20005), (85, 12003), (255, 4001)]