3940420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17911}}^1$

素因数の和:17931

約数の個数: 24

約数和(自身を含む): 9027648

約数和(自身を除く): 5087228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 17911, 35822, 71644, 89555, 179110, 197021, 358220, 394042, 788084, 985105, 1970210, 3940420]

約数ペア:

[(1, 3940420), (2, 1970210), (4, 985105), (5, 788084), (10, 394042), (11, 358220), (20, 197021), (22, 179110), (44, 89555), (55, 71644), (110, 35822), (220, 17911)]