18259880

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2011}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 41286240

約数和(自身を除く): 23026360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2011, 2270, 4022, 4540, 8044, 9080, 10055, 16088, 20110, 40220, 80440, 456497, 912994, 1825988, 2282485, 3651976, 4564970, 9129940, 18259880]

約数ペア:

[(1, 18259880), (2, 9129940), (4, 4564970), (5, 3651976), (8, 2282485), (10, 1825988), (20, 912994), (40, 456497), (227, 80440), (454, 40220), (908, 20110), (1135, 16088), (1816, 10055), (2011, 9080), (2270, 8044), (4022, 4540)]