2016646040

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{25373}}^1$

素因数の和:27371

約数の個数: 32

約数和(自身を含む): 4539916080

約数和(自身を除く): 2523270040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 3974, 7948, 9935, 15896, 19870, 25373, 39740, 50746, 79480, 101492, 126865, 202984, 253730, 507460, 1014920, 50416151, 100832302, 201664604, 252080755, 403329208, 504161510, 1008323020, 2016646040]

約数ペア:

[(1, 2016646040), (2, 1008323020), (4, 504161510), (5, 403329208), (8, 252080755), (10, 201664604), (20, 100832302), (40, 50416151), (1987, 1014920), (3974, 507460), (7948, 253730), (9935, 202984), (15896, 126865), (19870, 101492), (25373, 79480), (39740, 50746)]