81471740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{581941}}^1$

素因数の和:581957

約数の個数: 24

約数和(自身を含む): 195532512

約数和(自身を除く): 114060772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581941, 1163882, 2327764, 2909705, 4073587, 5819410, 8147174, 11638820, 16294348, 20367935, 40735870, 81471740]

約数ペア:

[(1, 81471740), (2, 40735870), (4, 20367935), (5, 16294348), (7, 11638820), (10, 8147174), (14, 5819410), (20, 4073587), (28, 2909705), (35, 2327764), (70, 1163882), (140, 581941)]