20489545

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 25417728

約数和(自身を除く): 4928183

約数列:

[1, 5, 41, 127, 205, 635, 787, 3935, 5207, 26035, 32267, 99949, 161335, 499745, 4097909, 20489545]

約数ペア:

[(1, 20489545), (5, 4097909), (41, 499745), (127, 161335), (205, 99949), (635, 32267), (787, 26035), (3935, 5207)]