25960040

素因数分解:

$2^3\times 5^1\times {\mathrm{649001}}^1$

素因数の和:649012

約数の個数: 16

約数和(自身を含む): 58410180

約数和(自身を除く): 32450140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 649001, 1298002, 2596004, 3245005, 5192008, 6490010, 12980020, 25960040]

約数ペア:

[(1, 25960040), (2, 12980020), (4, 6490010), (5, 5192008), (8, 3245005), (10, 2596004), (20, 1298002), (40, 649001)]