87955880

素因数分解:

$2^3\times 5^1\times {\mathrm{2198897}}^1$

素因数の和:2198908

約数の個数: 16

約数和(自身を含む): 197900820

約数和(自身を除く): 109944940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2198897, 4397794, 8795588, 10994485, 17591176, 21988970, 43977940, 87955880]

約数ペア:

[(1, 87955880), (2, 43977940), (4, 21988970), (5, 17591176), (8, 10994485), (10, 8795588), (20, 4397794), (40, 2198897)]