209250970

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{10531}}^1$

素因数の和:12525

約数の個数: 16

約数和(自身を含む): 376877088

約数和(自身を除く): 167626118

約数列:

[1, 2, 5, 10, 1987, 3974, 9935, 10531, 19870, 21062, 52655, 105310, 20925097, 41850194, 104625485, 209250970]

約数ペア:

[(1, 209250970), (2, 104625485), (5, 41850194), (10, 20925097), (1987, 105310), (3974, 52655), (9935, 21062), (10531, 19870)]