20550656

素因数分解:

$2^{10}\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 88

約数和(自身を含む): 48734976

約数和(自身を除く): 28184320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 61, 64, 94, 112, 122, 128, 188, 224, 244, 256, 329, 376, 427, 448, 488, 512, 658, 752, 854, 896, 976, 1024, 1316, 1504, 1708, 1792, 1952, 2632, 2867, 3008, 3416, 3584, 3904, 5264, 5734, 6016, 6832, 7168, 7808, 10528, 11468, 12032, 13664, 15616, 20069, 21056, 22936, 24064, 27328, 31232, 40138, 42112, 45872, 48128, 54656, 62464, 80276, 84224, 91744, 109312, 160552, 168448, 183488, 218624, 321104, 336896, 366976, 437248, 642208, 733952, 1284416, 1467904, 2568832, 2935808, 5137664, 10275328, 20550656]

約数ペア:

[(1, 20550656), (2, 10275328), (4, 5137664), (7, 2935808), (8, 2568832), (14, 1467904), (16, 1284416), (28, 733952), (32, 642208), (47, 437248), (56, 366976), (61, 336896), (64, 321104), (94, 218624), (112, 183488), (122, 168448), (128, 160552), (188, 109312), (224, 91744), (244, 84224), (256, 80276), (329, 62464), (376, 54656), (427, 48128), (448, 45872), (488, 42112), (512, 40138), (658, 31232), (752, 27328), (854, 24064), (896, 22936), (976, 21056), (1024, 20069), (1316, 15616), (1504, 13664), (1708, 12032), (1792, 11468), (1952, 10528), (2632, 7808), (2867, 7168), (3008, 6832), (3416, 6016), (3584, 5734), (3904, 5264)]