66193520

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7591}}^1$

素因数の和:7713

約数の個数: 40

約数和(自身を含む): 155332320

約数和(自身を除く): 89138800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 7591, 8720, 15182, 30364, 37955, 60728, 75910, 121456, 151820, 303640, 607280, 827419, 1654838, 3309676, 4137095, 6619352, 8274190, 13238704, 16548380, 33096760, 66193520]

約数ペア:

[(1, 66193520), (2, 33096760), (4, 16548380), (5, 13238704), (8, 8274190), (10, 6619352), (16, 4137095), (20, 3309676), (40, 1654838), (80, 827419), (109, 607280), (218, 303640), (436, 151820), (545, 121456), (872, 75910), (1090, 60728), (1744, 37955), (2180, 30364), (4360, 15182), (7591, 8720)]