19882220

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1741}}^1$

素因数の和:2321

約数の個数: 24

約数和(自身を含む): 41849808

約数和(自身を除く): 21967588

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 1741, 2284, 2855, 3482, 5710, 6964, 8705, 11420, 17410, 34820, 994111, 1988222, 3976444, 4970555, 9941110, 19882220]

約数ペア:

[(1, 19882220), (2, 9941110), (4, 4970555), (5, 3976444), (10, 1988222), (20, 994111), (571, 34820), (1142, 17410), (1741, 11420), (2284, 8705), (2855, 6964), (3482, 5710)]