18238160

素因数分解:

$2^4\times 5^1\times {\mathrm{227977}}^1$

素因数の和:227990

約数の個数: 20

約数和(自身を含む): 42403908

約数和(自身を除く): 24165748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227977, 455954, 911908, 1139885, 1823816, 2279770, 3647632, 4559540, 9119080, 18238160]

約数ペア:

[(1, 18238160), (2, 9119080), (4, 4559540), (5, 3647632), (8, 2279770), (10, 1823816), (16, 1139885), (20, 911908), (40, 455954), (80, 227977)]