19875880

素因数分解:

$2^3\times 5^1\times {\mathrm{496897}}^1$

素因数の和:496908

約数の個数: 16

約数和(自身を含む): 44720820

約数和(自身を除く): 24844940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496897, 993794, 1987588, 2484485, 3975176, 4968970, 9937940, 19875880]

約数ペア:

[(1, 19875880), (2, 9937940), (4, 4968970), (5, 3975176), (8, 2484485), (10, 1987588), (20, 993794), (40, 496897)]