18316880

素因数分解:

$2^4\times 5^1\times {\mathrm{228961}}^1$

素因数の和:228974

約数の個数: 20

約数和(自身を含む): 42586932

約数和(自身を除く): 24270052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228961, 457922, 915844, 1144805, 1831688, 2289610, 3663376, 4579220, 9158440, 18316880]

約数ペア:

[(1, 18316880), (2, 9158440), (4, 4579220), (5, 3663376), (8, 2289610), (10, 1831688), (16, 1144805), (20, 915844), (40, 457922), (80, 228961)]