18280880

素因数分解:

$2^4\times 5^1\times {\mathrm{228511}}^1$

素因数の和:228524

約数の個数: 20

約数和(自身を含む): 42503232

約数和(自身を除く): 24222352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228511, 457022, 914044, 1142555, 1828088, 2285110, 3656176, 4570220, 9140440, 18280880]

約数ペア:

[(1, 18280880), (2, 9140440), (4, 4570220), (5, 3656176), (8, 2285110), (10, 1828088), (16, 1142555), (20, 914044), (40, 457022), (80, 228511)]