1664797981

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 2292494400

約数和(自身を除く): 627696419

約数列:

[1, 7, 11, 17, 49, 77, 83, 119, 121, 187, 199, 539, 581, 833, 847, 913, 1309, 1393, 1411, 2057, 2189, 3383, 4067, 5929, 6391, 9163, 9751, 9877, 10043, 14399, 15323, 15521, 16517, 23681, 24079, 37213, 44737, 69139, 70301, 100793, 107261, 108647, 115619, 165767, 168553, 170731, 181687, 260491, 280789, 409343, 492107, 760529, 809333, 1179871, 1195117, 1271809, 1823437, 1965523, 1998557, 2865401, 3088679, 8365819, 8902663, 13758661, 13989899, 20057807, 21620753, 33975469, 97929293, 151345271, 237828283, 1664797981]

約数ペア:

[(1, 1664797981), (7, 237828283), (11, 151345271), (17, 97929293), (49, 33975469), (77, 21620753), (83, 20057807), (119, 13989899), (121, 13758661), (187, 8902663), (199, 8365819), (539, 3088679), (581, 2865401), (833, 1998557), (847, 1965523), (913, 1823437), (1309, 1271809), (1393, 1195117), (1411, 1179871), (2057, 809333), (2189, 760529), (3383, 492107), (4067, 409343), (5929, 280789), (6391, 260491), (9163, 181687), (9751, 170731), (9877, 168553), (10043, 165767), (14399, 115619), (15323, 108647), (15521, 107261), (16517, 100793), (23681, 70301), (24079, 69139), (37213, 44737)]