12850220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15671}}^1$

素因数の和:15721

約数の個数: 24

約数和(自身を含む): 27645408

約数和(自身を除く): 14795188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15671, 31342, 62684, 78355, 156710, 313420, 642511, 1285022, 2570044, 3212555, 6425110, 12850220]

約数ペア:

[(1, 12850220), (2, 6425110), (4, 3212555), (5, 2570044), (10, 1285022), (20, 642511), (41, 313420), (82, 156710), (164, 78355), (205, 62684), (410, 31342), (820, 15671)]