1285330180

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{589601}}^1$

素因数の和:589719

約数の個数: 24

約数和(自身を含む): 2723961240

約数和(自身を除く): 1438631060

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 589601, 1179202, 2358404, 2948005, 5896010, 11792020, 64266509, 128533018, 257066036, 321332545, 642665090, 1285330180]

約数ペア:

[(1, 1285330180), (2, 642665090), (4, 321332545), (5, 257066036), (10, 128533018), (20, 64266509), (109, 11792020), (218, 5896010), (436, 2948005), (545, 2358404), (1090, 1179202), (2180, 589601)]