19661140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23977}}^1$

素因数の和:24027

約数の個数: 24

約数和(自身を含む): 42297192

約数和(自身を除く): 22636052

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23977, 47954, 95908, 119885, 239770, 479540, 983057, 1966114, 3932228, 4915285, 9830570, 19661140]

約数ペア:

[(1, 19661140), (2, 9830570), (4, 4915285), (5, 3932228), (10, 1966114), (20, 983057), (41, 479540), (82, 239770), (164, 119885), (205, 95908), (410, 47954), (820, 23977)]