289768280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{57041}}^1$

素因数の和:57179

約数の個数: 32

約数和(自身を含む): 657123840

約数和(自身を除く): 367355560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 57041, 114082, 228164, 285205, 456328, 570410, 1140820, 2281640, 7244207, 14488414, 28976828, 36221035, 57953656, 72442070, 144884140, 289768280]

約数ペア:

[(1, 289768280), (2, 144884140), (4, 72442070), (5, 57953656), (8, 36221035), (10, 28976828), (20, 14488414), (40, 7244207), (127, 2281640), (254, 1140820), (508, 570410), (635, 456328), (1016, 285205), (1270, 228164), (2540, 114082), (5080, 57041)]