28647280

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{827}}^1$

素因数の和:1273

約数の個数: 40

約数和(自身を含む): 66839472

約数和(自身を除く): 38192192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 827, 866, 1654, 1732, 2165, 3308, 3464, 4135, 4330, 6616, 6928, 8270, 8660, 13232, 16540, 17320, 33080, 34640, 66160, 358091, 716182, 1432364, 1790455, 2864728, 3580910, 5729456, 7161820, 14323640, 28647280]

約数ペア:

[(1, 28647280), (2, 14323640), (4, 7161820), (5, 5729456), (8, 3580910), (10, 2864728), (16, 1790455), (20, 1432364), (40, 716182), (80, 358091), (433, 66160), (827, 34640), (866, 33080), (1654, 17320), (1732, 16540), (2165, 13232), (3308, 8660), (3464, 8270), (4135, 6928), (4330, 6616)]