20641569340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147439781}}^1$

素因数の和:147439797

約数の個数: 24

約数和(自身を含む): 49539766752

約数和(自身を除く): 28898197412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147439781, 294879562, 589759124, 737198905, 1032078467, 1474397810, 2064156934, 2948795620, 4128313868, 5160392335, 10320784670, 20641569340]

約数ペア:

[(1, 20641569340), (2, 10320784670), (4, 5160392335), (5, 4128313868), (7, 2948795620), (10, 2064156934), (14, 1474397810), (20, 1032078467), (28, 737198905), (35, 589759124), (70, 294879562), (140, 147439781)]