20161958464

素因数分解:

$2^6\times {\mathrm{109}}^1\times {\mathrm{2890189}}^1$

素因数の和:2890310

約数の個数: 28

約数和(自身を含む): 40375954300

約数和(自身を除く): 20213995836

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 218, 436, 872, 1744, 3488, 6976, 2890189, 5780378, 11560756, 23121512, 46243024, 92486048, 184972096, 315030601, 630061202, 1260122404, 2520244808, 5040489616, 10080979232, 20161958464]

約数ペア:

[(1, 20161958464), (2, 10080979232), (4, 5040489616), (8, 2520244808), (16, 1260122404), (32, 630061202), (64, 315030601), (109, 184972096), (218, 92486048), (436, 46243024), (872, 23121512), (1744, 11560756), (3488, 5780378), (6976, 2890189)]