199985320

素因数分解:

$2^3\times 5^1\times {\mathrm{4999633}}^1$

素因数の和:4999644

約数の個数: 16

約数和(自身を含む): 449967060

約数和(自身を除く): 249981740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4999633, 9999266, 19998532, 24998165, 39997064, 49996330, 99992660, 199985320]

約数ペア:

[(1, 199985320), (2, 99992660), (4, 49996330), (5, 39997064), (8, 24998165), (10, 19998532), (20, 9999266), (40, 4999633)]