39799280

素因数分解:

$2^4\times 5^1\times {\mathrm{497491}}^1$

素因数の和:497504

約数の個数: 20

約数和(自身を含む): 92533512

約数和(自身を除く): 52734232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 497491, 994982, 1989964, 2487455, 3979928, 4974910, 7959856, 9949820, 19899640, 39799280]

約数ペア:

[(1, 39799280), (2, 19899640), (4, 9949820), (5, 7959856), (8, 4974910), (10, 3979928), (16, 2487455), (20, 1989964), (40, 994982), (80, 497491)]