20154163904

素因数分解:

$2^6\times 7^1\times {\mathrm{107}}^1\times {\mathrm{420439}}^1$

素因数の和:420565

約数の個数: 56

約数和(自身を含む): 46134040320

約数和(自身を除く): 25979876416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 214, 224, 428, 448, 749, 856, 1498, 1712, 2996, 3424, 5992, 6848, 11984, 23968, 47936, 420439, 840878, 1681756, 2943073, 3363512, 5886146, 6727024, 11772292, 13454048, 23544584, 26908096, 44986973, 47089168, 89973946, 94178336, 179947892, 188356672, 314908811, 359895784, 629817622, 719791568, 1259635244, 1439583136, 2519270488, 2879166272, 5038540976, 10077081952, 20154163904]

約数ペア:

[(1, 20154163904), (2, 10077081952), (4, 5038540976), (7, 2879166272), (8, 2519270488), (14, 1439583136), (16, 1259635244), (28, 719791568), (32, 629817622), (56, 359895784), (64, 314908811), (107, 188356672), (112, 179947892), (214, 94178336), (224, 89973946), (428, 47089168), (448, 44986973), (749, 26908096), (856, 23544584), (1498, 13454048), (1712, 11772292), (2996, 6727024), (3424, 5886146), (5992, 3363512), (6848, 2943073), (11984, 1681756), (23968, 840878), (47936, 420439)]