20554848

素因数分解:

$2^5\times 3^2\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:644

約数の個数: 72

約数和(自身を含む): 58968000

約数和(自身を除く): 38413152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 149, 288, 298, 447, 479, 596, 894, 958, 1192, 1341, 1437, 1788, 1916, 2384, 2682, 2874, 3576, 3832, 4311, 4768, 5364, 5748, 7152, 7664, 8622, 10728, 11496, 14304, 15328, 17244, 21456, 22992, 34488, 42912, 45984, 68976, 71371, 137952, 142742, 214113, 285484, 428226, 570968, 642339, 856452, 1141936, 1284678, 1712904, 2283872, 2569356, 3425808, 5138712, 6851616, 10277424, 20554848]

約数ペア:

[(1, 20554848), (2, 10277424), (3, 6851616), (4, 5138712), (6, 3425808), (8, 2569356), (9, 2283872), (12, 1712904), (16, 1284678), (18, 1141936), (24, 856452), (32, 642339), (36, 570968), (48, 428226), (72, 285484), (96, 214113), (144, 142742), (149, 137952), (288, 71371), (298, 68976), (447, 45984), (479, 42912), (596, 34488), (894, 22992), (958, 21456), (1192, 17244), (1341, 15328), (1437, 14304), (1788, 11496), (1916, 10728), (2384, 8622), (2682, 7664), (2874, 7152), (3576, 5748), (3832, 5364), (4311, 4768)]