18458320

素因数分解:

$2^4\times 5^1\times {\mathrm{230729}}^1$

素因数の和:230742

約数の個数: 20

約数和(自身を含む): 42915780

約数和(自身を除く): 24457460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230729, 461458, 922916, 1153645, 1845832, 2307290, 3691664, 4614580, 9229160, 18458320]

約数ペア:

[(1, 18458320), (2, 9229160), (4, 4614580), (5, 3691664), (8, 2307290), (10, 1845832), (16, 1153645), (20, 922916), (40, 461458), (80, 230729)]