20109680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6131}}^1$

素因数の和:6185

約数の個数: 40

約数和(自身を含む): 47903184

約数和(自身を除く): 27793504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6131, 12262, 24524, 30655, 49048, 61310, 98096, 122620, 245240, 251371, 490480, 502742, 1005484, 1256855, 2010968, 2513710, 4021936, 5027420, 10054840, 20109680]

約数ペア:

[(1, 20109680), (2, 10054840), (4, 5027420), (5, 4021936), (8, 2513710), (10, 2010968), (16, 1256855), (20, 1005484), (40, 502742), (41, 490480), (80, 251371), (82, 245240), (164, 122620), (205, 98096), (328, 61310), (410, 49048), (656, 30655), (820, 24524), (1640, 12262), (3280, 6131)]