19639480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70141}}^1$

素因数の和:70159

約数の個数: 32

約数和(自身を含む): 50502240

約数和(自身を除く): 30862760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70141, 140282, 280564, 350705, 490987, 561128, 701410, 981974, 1402820, 1963948, 2454935, 2805640, 3927896, 4909870, 9819740, 19639480]

約数ペア:

[(1, 19639480), (2, 9819740), (4, 4909870), (5, 3927896), (7, 2805640), (8, 2454935), (10, 1963948), (14, 1402820), (20, 981974), (28, 701410), (35, 561128), (40, 490987), (56, 350705), (70, 280564), (140, 140282), (280, 70141)]