65520760

素因数分解:

$2^3\times 5^1\times {\mathrm{1638019}}^1$

素因数の和:1638030

約数の個数: 16

約数和(自身を含む): 147421800

約数和(自身を除く): 81901040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1638019, 3276038, 6552076, 8190095, 13104152, 16380190, 32760380, 65520760]

約数ペア:

[(1, 65520760), (2, 32760380), (4, 16380190), (5, 13104152), (8, 8190095), (10, 6552076), (20, 3276038), (40, 1638019)]