28181272

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 66279600

約数和(自身を除く): 38098328

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 37, 49, 56, 58, 67, 74, 98, 116, 134, 148, 196, 203, 232, 259, 268, 296, 392, 406, 469, 518, 536, 812, 938, 1036, 1073, 1421, 1624, 1813, 1876, 1943, 2072, 2146, 2479, 2842, 3283, 3626, 3752, 3886, 4292, 4958, 5684, 6566, 7252, 7511, 7772, 8584, 9916, 11368, 13132, 13601, 14504, 15022, 15544, 17353, 19832, 26264, 27202, 30044, 34706, 52577, 54404, 60088, 69412, 71891, 95207, 105154, 108808, 121471, 138824, 143782, 190414, 210308, 242942, 287564, 380828, 420616, 485884, 503237, 575128, 761656, 971768, 1006474, 2012948, 3522659, 4025896, 7045318, 14090636, 28181272]

約数ペア:

[(1, 28181272), (2, 14090636), (4, 7045318), (7, 4025896), (8, 3522659), (14, 2012948), (28, 1006474), (29, 971768), (37, 761656), (49, 575128), (56, 503237), (58, 485884), (67, 420616), (74, 380828), (98, 287564), (116, 242942), (134, 210308), (148, 190414), (196, 143782), (203, 138824), (232, 121471), (259, 108808), (268, 105154), (296, 95207), (392, 71891), (406, 69412), (469, 60088), (518, 54404), (536, 52577), (812, 34706), (938, 30044), (1036, 27202), (1073, 26264), (1421, 19832), (1624, 17353), (1813, 15544), (1876, 15022), (1943, 14504), (2072, 13601), (2146, 13132), (2479, 11368), (2842, 9916), (3283, 8584), (3626, 7772), (3752, 7511), (3886, 7252), (4292, 6566), (4958, 5684)]