18009280

素因数分解:

$2^6\times 5^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1$

素因数の和:521

約数の個数: 56

約数和(自身を含む): 43269408

約数和(自身を除く): 25260128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 167, 320, 334, 337, 668, 674, 835, 1336, 1348, 1670, 1685, 2672, 2696, 3340, 3370, 5344, 5392, 6680, 6740, 10688, 10784, 13360, 13480, 21568, 26720, 26960, 53440, 53920, 56279, 107840, 112558, 225116, 281395, 450232, 562790, 900464, 1125580, 1800928, 2251160, 3601856, 4502320, 9004640, 18009280]

約数ペア:

[(1, 18009280), (2, 9004640), (4, 4502320), (5, 3601856), (8, 2251160), (10, 1800928), (16, 1125580), (20, 900464), (32, 562790), (40, 450232), (64, 281395), (80, 225116), (160, 112558), (167, 107840), (320, 56279), (334, 53920), (337, 53440), (668, 26960), (674, 26720), (835, 21568), (1336, 13480), (1348, 13360), (1670, 10784), (1685, 10688), (2672, 6740), (2696, 6680), (3340, 5392), (3370, 5344)]