20717367536

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{3469}}^1$

素因数の和:3778

約数の個数: 80

約数和(自身を含む): 42417002400

約数和(自身を除く): 21699634864

約数列:

[1, 2, 4, 8, 16, 29, 58, 61, 116, 122, 211, 232, 244, 422, 464, 488, 844, 976, 1688, 1769, 3376, 3469, 3538, 6119, 6938, 7076, 12238, 12871, 13876, 14152, 24476, 25742, 27752, 28304, 48952, 51484, 55504, 97904, 100601, 102968, 201202, 205936, 211609, 373259, 402404, 423218, 731959, 746518, 804808, 846436, 1463918, 1493036, 1609616, 1692872, 2927836, 2986072, 3385744, 5855672, 5972144, 6136661, 11711344, 12273322, 21226811, 24546644, 42453622, 44649499, 49093288, 84907244, 89298998, 98186576, 169814488, 178597996, 339628976, 357195992, 714391984, 1294835471, 2589670942, 5179341884, 10358683768, 20717367536]

約数ペア:

[(1, 20717367536), (2, 10358683768), (4, 5179341884), (8, 2589670942), (16, 1294835471), (29, 714391984), (58, 357195992), (61, 339628976), (116, 178597996), (122, 169814488), (211, 98186576), (232, 89298998), (244, 84907244), (422, 49093288), (464, 44649499), (488, 42453622), (844, 24546644), (976, 21226811), (1688, 12273322), (1769, 11711344), (3376, 6136661), (3469, 5972144), (3538, 5855672), (6119, 3385744), (6938, 2986072), (7076, 2927836), (12238, 1692872), (12871, 1609616), (13876, 1493036), (14152, 1463918), (24476, 846436), (25742, 804808), (27752, 746518), (28304, 731959), (48952, 423218), (51484, 402404), (55504, 373259), (97904, 211609), (100601, 205936), (102968, 201202)]