51817840

素因数分解:

$2^4\times 5^1\times {\mathrm{647723}}^1$

素因数の和:647736

約数の個数: 20

約数和(自身を含む): 120476664

約数和(自身を除く): 68658824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647723, 1295446, 2590892, 3238615, 5181784, 6477230, 10363568, 12954460, 25908920, 51817840]

約数ペア:

[(1, 51817840), (2, 25908920), (4, 12954460), (5, 10363568), (8, 6477230), (10, 5181784), (16, 3238615), (20, 2590892), (40, 1295446), (80, 647723)]