12879800

素因数分解:

$2^3\times 5^2\times {\mathrm{64399}}^1$

素因数の和:64415

約数の個数: 24

約数和(自身を含む): 29946000

約数和(自身を除く): 17066200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64399, 128798, 257596, 321995, 515192, 643990, 1287980, 1609975, 2575960, 3219950, 6439900, 12879800]

約数ペア:

[(1, 12879800), (2, 6439900), (4, 3219950), (5, 2575960), (8, 1609975), (10, 1287980), (20, 643990), (25, 515192), (40, 321995), (50, 257596), (100, 128798), (200, 64399)]