19728200

素因数分解:

$2^3\times 5^2\times {\mathrm{98641}}^1$

素因数の和:98657

約数の個数: 24

約数和(自身を含む): 45868530

約数和(自身を除く): 26140330

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 98641, 197282, 394564, 493205, 789128, 986410, 1972820, 2466025, 3945640, 4932050, 9864100, 19728200]

約数ペア:

[(1, 19728200), (2, 9864100), (4, 4932050), (5, 3945640), (8, 2466025), (10, 1972820), (20, 986410), (25, 789128), (40, 493205), (50, 394564), (100, 197282), (200, 98641)]