56388880

素因数分解:

$2^4\times 5^1\times {\mathrm{704861}}^1$

素因数の和:704874

約数の個数: 20

約数和(自身を含む): 131104332

約数和(自身を除く): 74715452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 704861, 1409722, 2819444, 3524305, 5638888, 7048610, 11277776, 14097220, 28194440, 56388880]

約数ペア:

[(1, 56388880), (2, 28194440), (4, 14097220), (5, 11277776), (8, 7048610), (10, 5638888), (16, 3524305), (20, 2819444), (40, 1409722), (80, 704861)]