82780760

素因数分解:

$2^3\times 5^1\times {\mathrm{2069519}}^1$

素因数の和:2069530

約数の個数: 16

約数和(自身を含む): 186256800

約数和(自身を除く): 103476040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2069519, 4139038, 8278076, 10347595, 16556152, 20695190, 41390380, 82780760]

約数ペア:

[(1, 82780760), (2, 41390380), (4, 20695190), (5, 16556152), (8, 10347595), (10, 8278076), (20, 4139038), (40, 2069519)]