19111760

素因数分解:

$2^4\times 5^1\times {\mathrm{238897}}^1$

素因数の和:238910

約数の個数: 20

約数和(自身を含む): 44435028

約数和(自身を除く): 25323268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238897, 477794, 955588, 1194485, 1911176, 2388970, 3822352, 4777940, 9555880, 19111760]

約数ペア:

[(1, 19111760), (2, 9555880), (4, 4777940), (5, 3822352), (8, 2388970), (10, 1911176), (16, 1194485), (20, 955588), (40, 477794), (80, 238897)]