51142040

素因数分解:

$2^3\times 5^1\times {\mathrm{1278551}}^1$

素因数の和:1278562

約数の個数: 16

約数和(自身を含む): 115069680

約数和(自身を除く): 63927640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1278551, 2557102, 5114204, 6392755, 10228408, 12785510, 25571020, 51142040]

約数ペア:

[(1, 51142040), (2, 25571020), (4, 12785510), (5, 10228408), (8, 6392755), (10, 5114204), (20, 2557102), (40, 1278551)]