20804900108

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{439}}^1\times {\mathrm{288973}}^1$

素因数の和:289457

約数の個数: 24

約数和(自身を含む): 37381676640

約数和(自身を除く): 16576776532

約数列:

[1, 2, 4, 41, 82, 164, 439, 878, 1756, 17999, 35998, 71996, 288973, 577946, 1155892, 11847893, 23695786, 47391572, 126859147, 253718294, 507436588, 5201225027, 10402450054, 20804900108]

約数ペア:

[(1, 20804900108), (2, 10402450054), (4, 5201225027), (41, 507436588), (82, 253718294), (164, 126859147), (439, 47391572), (878, 23695786), (1756, 11847893), (17999, 1155892), (35998, 577946), (71996, 288973)]