20420736

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 43031424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 71, 84, 96, 107, 112, 128, 142, 168, 192, 213, 214, 224, 284, 321, 336, 384, 426, 428, 448, 497, 568, 642, 672, 749, 852, 856, 896, 994, 1136, 1284, 1344, 1491, 1498, 1704, 1712, 1988, 2247, 2272, 2568, 2688, 2982, 2996, 3408, 3424, 3976, 4494, 4544, 5136, 5964, 5992, 6816, 6848, 7597, 7952, 8988, 9088, 10272, 11928, 11984, 13632, 13696, 15194, 15904, 17976, 20544, 22791, 23856, 23968, 27264, 30388, 31808, 35952, 41088, 45582, 47712, 47936, 53179, 60776, 63616, 71904, 91164, 95424, 95872, 106358, 121552, 143808, 159537, 182328, 190848, 212716, 243104, 287616, 319074, 364656, 425432, 486208, 638148, 729312, 850864, 972416, 1276296, 1458624, 1701728, 2552592, 2917248, 3403456, 5105184, 6806912, 10210368, 20420736]

約数ペア:

[(1, 20420736), (2, 10210368), (3, 6806912), (4, 5105184), (6, 3403456), (7, 2917248), (8, 2552592), (12, 1701728), (14, 1458624), (16, 1276296), (21, 972416), (24, 850864), (28, 729312), (32, 638148), (42, 486208), (48, 425432), (56, 364656), (64, 319074), (71, 287616), (84, 243104), (96, 212716), (107, 190848), (112, 182328), (128, 159537), (142, 143808), (168, 121552), (192, 106358), (213, 95872), (214, 95424), (224, 91164), (284, 71904), (321, 63616), (336, 60776), (384, 53179), (426, 47936), (428, 47712), (448, 45582), (497, 41088), (568, 35952), (642, 31808), (672, 30388), (749, 27264), (852, 23968), (856, 23856), (896, 22791), (994, 20544), (1136, 17976), (1284, 15904), (1344, 15194), (1491, 13696), (1498, 13632), (1704, 11984), (1712, 11928), (1988, 10272), (2247, 9088), (2272, 8988), (2568, 7952), (2688, 7597), (2982, 6848), (2996, 6816), (3408, 5992), (3424, 5964), (3976, 5136), (4494, 4544)]