20408880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85037}}^1$

素因数の和:85053

約数の個数: 40

約数和(自身を含む): 63268272

約数和(自身を除く): 42859392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85037, 170074, 255111, 340148, 425185, 510222, 680296, 850370, 1020444, 1275555, 1360592, 1700740, 2040888, 2551110, 3401480, 4081776, 5102220, 6802960, 10204440, 20408880]

約数ペア:

[(1, 20408880), (2, 10204440), (3, 6802960), (4, 5102220), (5, 4081776), (6, 3401480), (8, 2551110), (10, 2040888), (12, 1700740), (15, 1360592), (16, 1275555), (20, 1020444), (24, 850370), (30, 680296), (40, 510222), (48, 425185), (60, 340148), (80, 255111), (120, 170074), (240, 85037)]