25440620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{66949}}^1$

素因数の和:66977

約数の個数: 24

約数和(自身を含む): 56238000

約数和(自身を除く): 30797380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 66949, 133898, 267796, 334745, 669490, 1272031, 1338980, 2544062, 5088124, 6360155, 12720310, 25440620]

約数ペア:

[(1, 25440620), (2, 12720310), (4, 6360155), (5, 5088124), (10, 2544062), (19, 1338980), (20, 1272031), (38, 669490), (76, 334745), (95, 267796), (190, 133898), (380, 66949)]