20879800

素因数分解:

$2^3\times 5^2\times {\mathrm{104399}}^1$

素因数の和:104415

約数の個数: 24

約数和(自身を含む): 48546000

約数和(自身を除く): 27666200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 104399, 208798, 417596, 521995, 835192, 1043990, 2087980, 2609975, 4175960, 5219950, 10439900, 20879800]

約数ペア:

[(1, 20879800), (2, 10439900), (4, 5219950), (5, 4175960), (8, 2609975), (10, 2087980), (20, 1043990), (25, 835192), (40, 521995), (50, 417596), (100, 208798), (200, 104399)]