20744800

素因数分解:

$2^5\times 5^2\times {\mathrm{25931}}^1$

素因数の和:25951

約数の個数: 36

約数和(自身を含む): 50645196

約数和(自身を除く): 29900396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25931, 51862, 103724, 129655, 207448, 259310, 414896, 518620, 648275, 829792, 1037240, 1296550, 2074480, 2593100, 4148960, 5186200, 10372400, 20744800]

約数ペア:

[(1, 20744800), (2, 10372400), (4, 5186200), (5, 4148960), (8, 2593100), (10, 2074480), (16, 1296550), (20, 1037240), (25, 829792), (32, 648275), (40, 518620), (50, 414896), (80, 259310), (100, 207448), (160, 129655), (200, 103724), (400, 51862), (800, 25931)]