7840040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15077}}^1$

素因数の和:15101

約数の個数: 32

約数和(自身を含む): 18998280

約数和(自身を除く): 11158240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15077, 30154, 60308, 75385, 120616, 150770, 196001, 301540, 392002, 603080, 784004, 980005, 1568008, 1960010, 3920020, 7840040]

約数ペア:

[(1, 7840040), (2, 3920020), (4, 1960010), (5, 1568008), (8, 980005), (10, 784004), (13, 603080), (20, 392002), (26, 301540), (40, 196001), (52, 150770), (65, 120616), (104, 75385), (130, 60308), (260, 30154), (520, 15077)]