205208003

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 301916160

約数和(自身を除く): 96708157

約数列:

[1, 7, 11, 13, 17, 31, 77, 91, 119, 143, 187, 217, 221, 341, 389, 403, 527, 1001, 1309, 1547, 2387, 2431, 2723, 2821, 3689, 4279, 4433, 5057, 5797, 6613, 6851, 12059, 17017, 29953, 31031, 35399, 40579, 46291, 47957, 55627, 72743, 75361, 84413, 85969, 132649, 156767, 205003, 389389, 509201, 527527, 601783, 928543, 945659, 1097369, 1435021, 1724437, 2255033, 2665039, 6619613, 12071059, 15785231, 18655273, 29315429, 205208003]

約数ペア:

[(1, 205208003), (7, 29315429), (11, 18655273), (13, 15785231), (17, 12071059), (31, 6619613), (77, 2665039), (91, 2255033), (119, 1724437), (143, 1435021), (187, 1097369), (217, 945659), (221, 928543), (341, 601783), (389, 527527), (403, 509201), (527, 389389), (1001, 205003), (1309, 156767), (1547, 132649), (2387, 85969), (2431, 84413), (2723, 75361), (2821, 72743), (3689, 55627), (4279, 47957), (4433, 46291), (5057, 40579), (5797, 35399), (6613, 31031), (6851, 29953), (12059, 17017)]