998320

素因数分解:

$2^4\times 5^1\times {\mathrm{12479}}^1$

素因数の和:12492

約数の個数: 20

約数和(自身を含む): 2321280

約数和(自身を除く): 1322960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12479, 24958, 49916, 62395, 99832, 124790, 199664, 249580, 499160, 998320]

約数ペア:

[(1, 998320), (2, 499160), (4, 249580), (5, 199664), (8, 124790), (10, 99832), (16, 62395), (20, 49916), (40, 24958), (80, 12479)]