81537260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582409}}^1$

素因数の和:582425

約数の個数: 24

約数和(自身を含む): 195689760

約数和(自身を除く): 114152500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582409, 1164818, 2329636, 2912045, 4076863, 5824090, 8153726, 11648180, 16307452, 20384315, 40768630, 81537260]

約数ペア:

[(1, 81537260), (2, 40768630), (4, 20384315), (5, 16307452), (7, 11648180), (10, 8153726), (14, 5824090), (20, 4076863), (28, 2912045), (35, 2329636), (70, 1164818), (140, 582409)]