20367680

素因数分解:

$2^6\times 5^1\times {\mathrm{63649}}^1$

素因数の和:63666

約数の個数: 28

約数和(自身を含む): 48501300

約数和(自身を除く): 28133620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63649, 127298, 254596, 318245, 509192, 636490, 1018384, 1272980, 2036768, 2545960, 4073536, 5091920, 10183840, 20367680]

約数ペア:

[(1, 20367680), (2, 10183840), (4, 5091920), (5, 4073536), (8, 2545960), (10, 2036768), (16, 1272980), (20, 1018384), (32, 636490), (40, 509192), (64, 318245), (80, 254596), (160, 127298), (320, 63649)]