20394445

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1627}}^1$

素因数の和:1764

約数の個数: 16

約数和(自身を含む): 25787520

約数和(自身を除く): 5393075

約数列:

[1, 5, 23, 109, 115, 545, 1627, 2507, 8135, 12535, 37421, 177343, 187105, 886715, 4078889, 20394445]

約数ペア:

[(1, 20394445), (5, 4078889), (23, 886715), (109, 187105), (115, 177343), (545, 37421), (1627, 12535), (2507, 8135)]