64643120

素因数分解:

$2^4\times 5^1\times {\mathrm{808039}}^1$

素因数の和:808052

約数の個数: 20

約数和(自身を含む): 150295440

約数和(自身を除く): 85652320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 808039, 1616078, 3232156, 4040195, 6464312, 8080390, 12928624, 16160780, 32321560, 64643120]

約数ペア:

[(1, 64643120), (2, 32321560), (4, 16160780), (5, 12928624), (8, 8080390), (10, 6464312), (16, 4040195), (20, 3232156), (40, 1616078), (80, 808039)]