19156916620

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{741941}}^1$

素因数の和:743241

約数の個数: 24

約数和(自身を含む): 40260740688

約数和(自身を除く): 21103824068

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 6455, 12910, 25820, 741941, 1483882, 2967764, 3709705, 7419410, 14838820, 957845831, 1915691662, 3831383324, 4789229155, 9578458310, 19156916620]

約数ペア:

[(1, 19156916620), (2, 9578458310), (4, 4789229155), (5, 3831383324), (10, 1915691662), (20, 957845831), (1291, 14838820), (2582, 7419410), (5164, 3709705), (6455, 2967764), (12910, 1483882), (25820, 741941)]