18159280

素因数分解:

$2^4\times 5^1\times {\mathrm{226991}}^1$

素因数の和:227004

約数の個数: 20

約数和(自身を含む): 42220512

約数和(自身を除く): 24061232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226991, 453982, 907964, 1134955, 1815928, 2269910, 3631856, 4539820, 9079640, 18159280]

約数ペア:

[(1, 18159280), (2, 9079640), (4, 4539820), (5, 3631856), (8, 2269910), (10, 1815928), (16, 1134955), (20, 907964), (40, 453982), (80, 226991)]