39742116220

素因数分解:

$2^2\times 5^1\times {\mathrm{1987105811}}^1$

素因数の和:1987105820

約数の個数: 12

約数和(自身を含む): 83458444104

約数和(自身を除く): 43716327884

約数列:

[1, 2, 4, 5, 10, 20, 1987105811, 3974211622, 7948423244, 9935529055, 19871058110, 39742116220]

約数ペア:

[(1, 39742116220), (2, 19871058110), (4, 9935529055), (5, 7948423244), (10, 3974211622), (20, 1987105811)]