18033220

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1973}}^1$

素因数の和:2439

約数の個数: 24

約数和(自身を含む): 37971864

約数和(自身を除く): 19938644

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 1973, 2285, 3946, 4570, 7892, 9140, 9865, 19730, 39460, 901661, 1803322, 3606644, 4508305, 9016610, 18033220]

約数ペア:

[(1, 18033220), (2, 9016610), (4, 4508305), (5, 3606644), (10, 1803322), (20, 901661), (457, 39460), (914, 19730), (1828, 9865), (1973, 9140), (2285, 7892), (3946, 4570)]