66548840

素因数分解:

$2^3\times 5^1\times {\mathrm{1663721}}^1$

素因数の和:1663732

約数の個数: 16

約数和(自身を含む): 149734980

約数和(自身を除く): 83186140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1663721, 3327442, 6654884, 8318605, 13309768, 16637210, 33274420, 66548840]

約数ペア:

[(1, 66548840), (2, 33274420), (4, 16637210), (5, 13309768), (8, 8318605), (10, 6654884), (20, 3327442), (40, 1663721)]