18027380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128767}}^1$

素因数の和:128783

約数の個数: 24

約数和(自身を含む): 43266048

約数和(自身を除く): 25238668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128767, 257534, 515068, 643835, 901369, 1287670, 1802738, 2575340, 3605476, 4506845, 9013690, 18027380]

約数ペア:

[(1, 18027380), (2, 9013690), (4, 4506845), (5, 3605476), (7, 2575340), (10, 1802738), (14, 1287670), (20, 901369), (28, 643835), (35, 515068), (70, 257534), (140, 128767)]