18015620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128683}}^1$

素因数の和:128699

約数の個数: 24

約数和(自身を含む): 43237824

約数和(自身を除く): 25222204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128683, 257366, 514732, 643415, 900781, 1286830, 1801562, 2573660, 3603124, 4503905, 9007810, 18015620]

約数ペア:

[(1, 18015620), (2, 9007810), (4, 4503905), (5, 3603124), (7, 2573660), (10, 1801562), (14, 1286830), (20, 900781), (28, 643415), (35, 514732), (70, 257366), (140, 128683)]