18996656

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 45235200

約数和(自身を除く): 26238544

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 79, 112, 113, 133, 152, 158, 226, 266, 304, 316, 452, 532, 553, 632, 791, 904, 1064, 1106, 1264, 1501, 1582, 1808, 2128, 2147, 2212, 3002, 3164, 4294, 4424, 6004, 6328, 8588, 8848, 8927, 10507, 12008, 12656, 15029, 17176, 17854, 21014, 24016, 30058, 34352, 35708, 42028, 60116, 62489, 71416, 84056, 120232, 124978, 142832, 168112, 169613, 240464, 249956, 339226, 499912, 678452, 999824, 1187291, 1356904, 2374582, 2713808, 4749164, 9498328, 18996656]

約数ペア:

[(1, 18996656), (2, 9498328), (4, 4749164), (7, 2713808), (8, 2374582), (14, 1356904), (16, 1187291), (19, 999824), (28, 678452), (38, 499912), (56, 339226), (76, 249956), (79, 240464), (112, 169613), (113, 168112), (133, 142832), (152, 124978), (158, 120232), (226, 84056), (266, 71416), (304, 62489), (316, 60116), (452, 42028), (532, 35708), (553, 34352), (632, 30058), (791, 24016), (904, 21014), (1064, 17854), (1106, 17176), (1264, 15029), (1501, 12656), (1582, 12008), (1808, 10507), (2128, 8927), (2147, 8848), (2212, 8588), (3002, 6328), (3164, 6004), (4294, 4424)]