678651678

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^2\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:546

約数の個数: 72

約数和(自身を含む): 1539203328

約数和(自身を除く): 860551650

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 127, 174, 254, 261, 353, 381, 522, 706, 762, 841, 1059, 1143, 1682, 2118, 2286, 2523, 3177, 3683, 5046, 6354, 7366, 7569, 10237, 11049, 15138, 20474, 22098, 30711, 33147, 44831, 61422, 66294, 89662, 92133, 106807, 134493, 184266, 213614, 268986, 296873, 320421, 403479, 593746, 640842, 806958, 890619, 961263, 1300099, 1781238, 1922526, 2600198, 2671857, 3900297, 5343714, 7800594, 11700891, 23401782, 37702871, 75405742, 113108613, 226217226, 339325839, 678651678]

約数ペア:

[(1, 678651678), (2, 339325839), (3, 226217226), (6, 113108613), (9, 75405742), (18, 37702871), (29, 23401782), (58, 11700891), (87, 7800594), (127, 5343714), (174, 3900297), (254, 2671857), (261, 2600198), (353, 1922526), (381, 1781238), (522, 1300099), (706, 961263), (762, 890619), (841, 806958), (1059, 640842), (1143, 593746), (1682, 403479), (2118, 320421), (2286, 296873), (2523, 268986), (3177, 213614), (3683, 184266), (5046, 134493), (6354, 106807), (7366, 92133), (7569, 89662), (10237, 66294), (11049, 61422), (15138, 44831), (20474, 33147), (22098, 30711)]