27987800

素因数分解:

$2^3\times 5^2\times {\mathrm{139939}}^1$

素因数の和:139955

約数の個数: 24

約数和(自身を含む): 65072100

約数和(自身を除く): 37084300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 139939, 279878, 559756, 699695, 1119512, 1399390, 2798780, 3498475, 5597560, 6996950, 13993900, 27987800]

約数ペア:

[(1, 27987800), (2, 13993900), (4, 6996950), (5, 5597560), (8, 3498475), (10, 2798780), (20, 1399390), (25, 1119512), (40, 699695), (50, 559756), (100, 279878), (200, 139939)]