19680720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82003}}^1$

素因数の和:82019

約数の個数: 40

約数和(自身を含む): 61010976

約数和(自身を除く): 41330256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82003, 164006, 246009, 328012, 410015, 492018, 656024, 820030, 984036, 1230045, 1312048, 1640060, 1968072, 2460090, 3280120, 3936144, 4920180, 6560240, 9840360, 19680720]

約数ペア:

[(1, 19680720), (2, 9840360), (3, 6560240), (4, 4920180), (5, 3936144), (6, 3280120), (8, 2460090), (10, 1968072), (12, 1640060), (15, 1312048), (16, 1230045), (20, 984036), (24, 820030), (30, 656024), (40, 492018), (48, 410015), (60, 328012), (80, 246009), (120, 164006), (240, 82003)]