18256880

素因数分解:

$2^4\times 5^1\times {\mathrm{228211}}^1$

素因数の和:228224

約数の個数: 20

約数和(自身を含む): 42447432

約数和(自身を除く): 24190552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228211, 456422, 912844, 1141055, 1825688, 2282110, 3651376, 4564220, 9128440, 18256880]

約数ペア:

[(1, 18256880), (2, 9128440), (4, 4564220), (5, 3651376), (8, 2282110), (10, 1825688), (16, 1141055), (20, 912844), (40, 456422), (80, 228211)]