18924580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8681}}^1$

素因数の和:8799

約数の個数: 24

約数和(自身を含む): 40110840

約数和(自身を除く): 21186260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8681, 17362, 34724, 43405, 86810, 173620, 946229, 1892458, 3784916, 4731145, 9462290, 18924580]

約数ペア:

[(1, 18924580), (2, 9462290), (4, 4731145), (5, 3784916), (10, 1892458), (20, 946229), (109, 173620), (218, 86810), (436, 43405), (545, 34724), (1090, 17362), (2180, 8681)]