158260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 342216

約数和(自身を除く): 183956

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 193, 205, 386, 410, 772, 820, 965, 1930, 3860, 7913, 15826, 31652, 39565, 79130, 158260]

約数ペア:

[(1, 158260), (2, 79130), (4, 39565), (5, 31652), (10, 15826), (20, 7913), (41, 3860), (82, 1930), (164, 965), (193, 820), (205, 772), (386, 410)]