20620220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23977}}^1$

素因数の和:24029

約数の個数: 24

約数和(自身を含む): 44311344

約数和(自身を除く): 23691124

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23977, 47954, 95908, 119885, 239770, 479540, 1031011, 2062022, 4124044, 5155055, 10310110, 20620220]

約数ペア:

[(1, 20620220), (2, 10310110), (4, 5155055), (5, 4124044), (10, 2062022), (20, 1031011), (43, 479540), (86, 239770), (172, 119885), (215, 95908), (430, 47954), (860, 23977)]