8780720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8443}}^1$

素因数の和:8469

約数の個数: 40

約数和(自身を含む): 21988176

約数和(自身を除く): 13207456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8443, 16886, 33772, 42215, 67544, 84430, 109759, 135088, 168860, 219518, 337720, 439036, 548795, 675440, 878072, 1097590, 1756144, 2195180, 4390360, 8780720]

約数ペア:

[(1, 8780720), (2, 4390360), (4, 2195180), (5, 1756144), (8, 1097590), (10, 878072), (13, 675440), (16, 548795), (20, 439036), (26, 337720), (40, 219518), (52, 168860), (65, 135088), (80, 109759), (104, 84430), (130, 67544), (208, 42215), (260, 33772), (520, 16886), (1040, 8443)]