81910030

素因数分解:

$2^1\times 5^1\times {\mathrm{2543}}^1\times {\mathrm{3221}}^1$

素因数の和:5771

約数の個数: 16

約数和(自身を含む): 147541824

約数和(自身を除く): 65631794

約数列:

[1, 2, 5, 10, 2543, 3221, 5086, 6442, 12715, 16105, 25430, 32210, 8191003, 16382006, 40955015, 81910030]

約数ペア:

[(1, 81910030), (2, 40955015), (5, 16382006), (10, 8191003), (2543, 32210), (3221, 25430), (5086, 16105), (6442, 12715)]