18080360

素因数分解:

$2^3\times 5^1\times {\mathrm{452009}}^1$

素因数の和:452020

約数の個数: 16

約数和(自身を含む): 40680900

約数和(自身を除く): 22600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 452009, 904018, 1808036, 2260045, 3616072, 4520090, 9040180, 18080360]

約数ペア:

[(1, 18080360), (2, 9040180), (4, 4520090), (5, 3616072), (8, 2260045), (10, 1808036), (20, 904018), (40, 452009)]