28878556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2857}}^1$

素因数の和:2906

約数の個数: 36

約数和(自身を含む): 60978288

約数和(自身を除く): 32099732

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2527, 2857, 5054, 5714, 10108, 11428, 19999, 39998, 54283, 79996, 108566, 217132, 379981, 759962, 1031377, 1519924, 2062754, 4125508, 7219639, 14439278, 28878556]

約数ペア:

[(1, 28878556), (2, 14439278), (4, 7219639), (7, 4125508), (14, 2062754), (19, 1519924), (28, 1031377), (38, 759962), (76, 379981), (133, 217132), (266, 108566), (361, 79996), (532, 54283), (722, 39998), (1444, 19999), (2527, 11428), (2857, 10108), (5054, 5714)]