28165910

素因数分解:

$2^1\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{1999}}^1$

素因数の和:3415

約数の個数: 16

約数和(自身を含む): 50760000

約数和(自身を除く): 22594090

約数列:

[1, 2, 5, 10, 1409, 1999, 2818, 3998, 7045, 9995, 14090, 19990, 2816591, 5633182, 14082955, 28165910]

約数ペア:

[(1, 28165910), (2, 14082955), (5, 5633182), (10, 2816591), (1409, 19990), (1999, 14090), (2818, 9995), (3998, 7045)]