260759680

素因数分解:

$2^7\times 5^1\times {\mathrm{407437}}^1$

素因数の和:407456

約数の個数: 32

約数和(自身を含む): 623380140

約数和(自身を除く): 362620460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 407437, 814874, 1629748, 2037185, 3259496, 4074370, 6518992, 8148740, 13037984, 16297480, 26075968, 32594960, 52151936, 65189920, 130379840, 260759680]

約数ペア:

[(1, 260759680), (2, 130379840), (4, 65189920), (5, 52151936), (8, 32594960), (10, 26075968), (16, 16297480), (20, 13037984), (32, 8148740), (40, 6518992), (64, 4074370), (80, 3259496), (128, 2037185), (160, 1629748), (320, 814874), (640, 407437)]