204078440

素因数分解:

$2^3\times 5^1\times {\mathrm{5101961}}^1$

素因数の和:5101972

約数の個数: 16

約数和(自身を含む): 459176580

約数和(自身を除く): 255098140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5101961, 10203922, 20407844, 25509805, 40815688, 51019610, 102039220, 204078440]

約数ペア:

[(1, 204078440), (2, 102039220), (4, 51019610), (5, 40815688), (8, 25509805), (10, 20407844), (20, 10203922), (40, 5101961)]