81795910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2857}}^1$

素因数の和:3280

約数の個数: 32

約数和(自身を含む): 168736320

約数和(自身を除く): 86940410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 818, 2045, 2857, 2863, 4090, 5714, 5726, 14285, 14315, 19999, 28570, 28630, 39998, 99995, 199990, 1168513, 2337026, 5842565, 8179591, 11685130, 16359182, 40897955, 81795910]

約数ペア:

[(1, 81795910), (2, 40897955), (5, 16359182), (7, 11685130), (10, 8179591), (14, 5842565), (35, 2337026), (70, 1168513), (409, 199990), (818, 99995), (2045, 39998), (2857, 28630), (2863, 28570), (4090, 19999), (5714, 14315), (5726, 14285)]