81280995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{318749}}^1$

素因数の和:318774

約数の個数: 16

約数和(自身を含む): 137700000

約数和(自身を除く): 56419005

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 318749, 956247, 1593745, 4781235, 5418733, 16256199, 27093665, 81280995]

約数ペア:

[(1, 81280995), (3, 27093665), (5, 16256199), (15, 5418733), (17, 4781235), (51, 1593745), (85, 956247), (255, 318749)]