18720810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{208009}}^1$

素因数の和:208022

約数の個数: 24

約数和(自身を含む): 48674340

約数和(自身を除く): 29953530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 208009, 416018, 624027, 1040045, 1248054, 1872081, 2080090, 3120135, 3744162, 6240270, 9360405, 18720810]

約数ペア:

[(1, 18720810), (2, 9360405), (3, 6240270), (5, 3744162), (6, 3120135), (9, 2080090), (10, 1872081), (15, 1248054), (18, 1040045), (30, 624027), (45, 416018), (90, 208009)]