209980324

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{10271}}^1$

素因数の和:10563

約数の個数: 24

約数和(自身を含む): 388281600

約数和(自身を除く): 178301276

約数列:

[1, 2, 4, 19, 38, 76, 269, 538, 1076, 5111, 10222, 10271, 20444, 20542, 41084, 195149, 390298, 780596, 2762899, 5525798, 11051596, 52495081, 104990162, 209980324]

約数ペア:

[(1, 209980324), (2, 104990162), (4, 52495081), (19, 11051596), (38, 5525798), (76, 2762899), (269, 780596), (538, 390298), (1076, 195149), (5111, 41084), (10222, 20542), (10271, 20444)]