216475880

素因数分解:

$2^3\times 5^1\times {\mathrm{5411897}}^1$

素因数の和:5411908

約数の個数: 16

約数和(自身を含む): 487070820

約数和(自身を除く): 270594940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5411897, 10823794, 21647588, 27059485, 43295176, 54118970, 108237940, 216475880]

約数ペア:

[(1, 216475880), (2, 108237940), (4, 54118970), (5, 43295176), (8, 27059485), (10, 21647588), (20, 10823794), (40, 5411897)]