38985040

素因数分解:

$2^4\times 5^1\times {\mathrm{487313}}^1$

素因数の和:487326

約数の個数: 20

約数和(自身を含む): 90640404

約数和(自身を除く): 51655364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487313, 974626, 1949252, 2436565, 3898504, 4873130, 7797008, 9746260, 19492520, 38985040]

約数ペア:

[(1, 38985040), (2, 19492520), (4, 9746260), (5, 7797008), (8, 4873130), (10, 3898504), (16, 2436565), (20, 1949252), (40, 974626), (80, 487313)]