78181257

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 140083200

約数和(自身を除く): 61901943

約数列:

[1, 3, 7, 11, 19, 21, 33, 47, 57, 77, 133, 141, 209, 231, 329, 379, 399, 517, 627, 893, 987, 1137, 1463, 1551, 2653, 2679, 3619, 4169, 4389, 6251, 7201, 7959, 9823, 10857, 12507, 17813, 18753, 21603, 29183, 29469, 50407, 53439, 68761, 79211, 87549, 124691, 151221, 195943, 206283, 237633, 338447, 374073, 554477, 587829, 1015341, 1371601, 1663431, 2369129, 3722917, 4114803, 7107387, 11168751, 26060419, 78181257]

約数ペア:

[(1, 78181257), (3, 26060419), (7, 11168751), (11, 7107387), (19, 4114803), (21, 3722917), (33, 2369129), (47, 1663431), (57, 1371601), (77, 1015341), (133, 587829), (141, 554477), (209, 374073), (231, 338447), (329, 237633), (379, 206283), (399, 195943), (517, 151221), (627, 124691), (893, 87549), (987, 79211), (1137, 68761), (1463, 53439), (1551, 50407), (2653, 29469), (2679, 29183), (3619, 21603), (4169, 18753), (4389, 17813), (6251, 12507), (7201, 10857), (7959, 9823)]