128767840

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6337}}^1$

素因数の和:6479

約数の個数: 48

約数和(自身を含む): 306657792

約数和(自身を除く): 177889952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6337, 10160, 12674, 20320, 25348, 31685, 50696, 63370, 101392, 126740, 202784, 253480, 506960, 804799, 1013920, 1609598, 3219196, 4023995, 6438392, 8047990, 12876784, 16095980, 25753568, 32191960, 64383920, 128767840]

約数ペア:

[(1, 128767840), (2, 64383920), (4, 32191960), (5, 25753568), (8, 16095980), (10, 12876784), (16, 8047990), (20, 6438392), (32, 4023995), (40, 3219196), (80, 1609598), (127, 1013920), (160, 804799), (254, 506960), (508, 253480), (635, 202784), (1016, 126740), (1270, 101392), (2032, 63370), (2540, 50696), (4064, 31685), (5080, 25348), (6337, 20320), (10160, 12674)]