1277778726

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7177}}^1$

素因数の和:7355

約数の個数: 80

約数和(自身を含む): 3293496096

約数和(自身を除く): 2015717370

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 157, 162, 189, 314, 378, 471, 567, 942, 1099, 1134, 1413, 2198, 2826, 3297, 4239, 6594, 7177, 8478, 9891, 12717, 14354, 19782, 21531, 25434, 29673, 43062, 50239, 59346, 64593, 89019, 100478, 129186, 150717, 178038, 193779, 301434, 387558, 452151, 581337, 904302, 1126789, 1162674, 1356453, 2253578, 2712906, 3380367, 4069359, 6760734, 7887523, 8138718, 10141101, 15775046, 20282202, 23662569, 30423303, 47325138, 60846606, 70987707, 91269909, 141975414, 182539818, 212963121, 425926242, 638889363, 1277778726]

約数ペア:

[(1, 1277778726), (2, 638889363), (3, 425926242), (6, 212963121), (7, 182539818), (9, 141975414), (14, 91269909), (18, 70987707), (21, 60846606), (27, 47325138), (42, 30423303), (54, 23662569), (63, 20282202), (81, 15775046), (126, 10141101), (157, 8138718), (162, 7887523), (189, 6760734), (314, 4069359), (378, 3380367), (471, 2712906), (567, 2253578), (942, 1356453), (1099, 1162674), (1134, 1126789), (1413, 904302), (2198, 581337), (2826, 452151), (3297, 387558), (4239, 301434), (6594, 193779), (7177, 178038), (8478, 150717), (9891, 129186), (12717, 100478), (14354, 89019), (19782, 64593), (21531, 59346), (25434, 50239), (29673, 43062)]