1990229900

素因数分解:

$2^2\times 5^2\times {\mathrm{19902299}}^1$

素因数の和:19902313

約数の個数: 18

約数和(自身を含む): 4318799100

約数和(自身を除く): 2328569200

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 19902299, 39804598, 79609196, 99511495, 199022990, 398045980, 497557475, 995114950, 1990229900]

約数ペア:

[(1, 1990229900), (2, 995114950), (4, 497557475), (5, 398045980), (10, 199022990), (20, 99511495), (25, 79609196), (50, 39804598), (100, 19902299)]