161950789

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 238436352

約数和(自身を除く): 76485563

約数列:

[1, 7, 11, 13, 17, 31, 77, 91, 119, 143, 187, 217, 221, 307, 341, 403, 527, 1001, 1309, 1547, 2149, 2387, 2431, 2821, 3377, 3689, 3991, 4433, 5219, 5797, 6851, 9517, 17017, 23639, 27937, 31031, 36533, 40579, 43901, 47957, 57409, 66619, 67847, 75361, 104687, 123721, 161789, 307307, 401863, 474929, 527527, 732809, 746317, 866047, 1132523, 1360931, 1779679, 2103257, 5224219, 9526517, 12457753, 14722799, 23135827, 161950789]

約数ペア:

[(1, 161950789), (7, 23135827), (11, 14722799), (13, 12457753), (17, 9526517), (31, 5224219), (77, 2103257), (91, 1779679), (119, 1360931), (143, 1132523), (187, 866047), (217, 746317), (221, 732809), (307, 527527), (341, 474929), (403, 401863), (527, 307307), (1001, 161789), (1309, 123721), (1547, 104687), (2149, 75361), (2387, 67847), (2431, 66619), (2821, 57409), (3377, 47957), (3689, 43901), (3991, 40579), (4433, 36533), (5219, 31031), (5797, 27937), (6851, 23639), (9517, 17017)]