19518560

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2837}}^1$

素因数の和:2895

約数の個数: 48

約数和(自身を含む): 47201616

約数和(自身を除く): 27683056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2837, 3440, 5674, 6880, 11348, 14185, 22696, 28370, 45392, 56740, 90784, 113480, 121991, 226960, 243982, 453920, 487964, 609955, 975928, 1219910, 1951856, 2439820, 3903712, 4879640, 9759280, 19518560]

約数ペア:

[(1, 19518560), (2, 9759280), (4, 4879640), (5, 3903712), (8, 2439820), (10, 1951856), (16, 1219910), (20, 975928), (32, 609955), (40, 487964), (43, 453920), (80, 243982), (86, 226960), (160, 121991), (172, 113480), (215, 90784), (344, 56740), (430, 45392), (688, 28370), (860, 22696), (1376, 14185), (1720, 11348), (2837, 6880), (3440, 5674)]