1120040

素因数分解:

$2^3\times 5^1\times {\mathrm{28001}}^1$

素因数の和:28012

約数の個数: 16

約数和(自身を含む): 2520180

約数和(自身を除く): 1400140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 28001, 56002, 112004, 140005, 224008, 280010, 560020, 1120040]

約数ペア:

[(1, 1120040), (2, 560020), (4, 280010), (5, 224008), (8, 140005), (10, 112004), (20, 56002), (40, 28001)]