1995640

素因数分解:

$2^3\times 5^1\times {\mathrm{49891}}^1$

素因数の和:49902

約数の個数: 16

約数和(自身を含む): 4490280

約数和(自身を除く): 2494640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49891, 99782, 199564, 249455, 399128, 498910, 997820, 1995640]

約数ペア:

[(1, 1995640), (2, 997820), (4, 498910), (5, 399128), (8, 249455), (10, 199564), (20, 99782), (40, 49891)]