20877080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74561}}^1$

素因数の和:74579

約数の個数: 32

約数和(自身を含む): 53684640

約数和(自身を除く): 32807560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74561, 149122, 298244, 372805, 521927, 596488, 745610, 1043854, 1491220, 2087708, 2609635, 2982440, 4175416, 5219270, 10438540, 20877080]

約数ペア:

[(1, 20877080), (2, 10438540), (4, 5219270), (5, 4175416), (7, 2982440), (8, 2609635), (10, 2087708), (14, 1491220), (20, 1043854), (28, 745610), (35, 596488), (40, 521927), (56, 372805), (70, 298244), (140, 149122), (280, 74561)]