19639340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140281}}^1$

素因数の和:140297

約数の個数: 24

約数和(自身を含む): 47134752

約数和(自身を除く): 27495412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140281, 280562, 561124, 701405, 981967, 1402810, 1963934, 2805620, 3927868, 4909835, 9819670, 19639340]

約数ペア:

[(1, 19639340), (2, 9819670), (4, 4909835), (5, 3927868), (7, 2805620), (10, 1963934), (14, 1402810), (20, 981967), (28, 701405), (35, 561124), (70, 280562), (140, 140281)]