20989571008

素因数分解:

$2^6\times 7^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{971}}^1$

素因数の和:1171

約数の個数: 168

約数和(自身を含む): 49732624944

約数和(自身を除く): 28743053936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 64, 98, 112, 113, 122, 196, 224, 226, 244, 392, 427, 448, 452, 488, 784, 791, 854, 904, 971, 976, 1568, 1582, 1708, 1808, 1942, 1952, 2989, 3136, 3164, 3416, 3616, 3884, 3904, 5537, 5978, 6328, 6797, 6832, 6893, 7232, 7768, 11074, 11956, 12656, 13594, 13664, 13786, 15536, 22148, 23912, 25312, 27188, 27328, 27572, 31072, 44296, 47579, 47824, 48251, 50624, 54376, 55144, 59231, 62144, 88592, 95158, 95648, 96502, 108752, 109723, 110288, 118462, 177184, 190316, 191296, 193004, 217504, 219446, 220576, 236924, 337757, 354368, 380632, 386008, 414617, 435008, 438892, 441152, 473848, 675514, 761264, 768061, 772016, 829234, 877784, 947696, 1351028, 1522528, 1536122, 1544032, 1658468, 1755568, 1895392, 2702056, 2902319, 3045056, 3072244, 3088064, 3316936, 3511136, 3790784, 5376427, 5404112, 5804638, 6144488, 6633872, 6693103, 7022272, 10752854, 10808224, 11609276, 12288976, 13267744, 13386206, 21505708, 21616448, 23218552, 24577952, 26535488, 26772412, 43011416, 46437104, 46851721, 49155904, 53544824, 86022832, 92874208, 93703442, 107089648, 172045664, 185748416, 187406884, 214179296, 327962047, 344091328, 374813768, 428358592, 655924094, 749627536, 1311848188, 1499255072, 2623696376, 2998510144, 5247392752, 10494785504, 20989571008]

約数ペア:

[(1, 20989571008), (2, 10494785504), (4, 5247392752), (7, 2998510144), (8, 2623696376), (14, 1499255072), (16, 1311848188), (28, 749627536), (32, 655924094), (49, 428358592), (56, 374813768), (61, 344091328), (64, 327962047), (98, 214179296), (112, 187406884), (113, 185748416), (122, 172045664), (196, 107089648), (224, 93703442), (226, 92874208), (244, 86022832), (392, 53544824), (427, 49155904), (448, 46851721), (452, 46437104), (488, 43011416), (784, 26772412), (791, 26535488), (854, 24577952), (904, 23218552), (971, 21616448), (976, 21505708), (1568, 13386206), (1582, 13267744), (1708, 12288976), (1808, 11609276), (1942, 10808224), (1952, 10752854), (2989, 7022272), (3136, 6693103), (3164, 6633872), (3416, 6144488), (3616, 5804638), (3884, 5404112), (3904, 5376427), (5537, 3790784), (5978, 3511136), (6328, 3316936), (6797, 3088064), (6832, 3072244), (6893, 3045056), (7232, 2902319), (7768, 2702056), (11074, 1895392), (11956, 1755568), (12656, 1658468), (13594, 1544032), (13664, 1536122), (13786, 1522528), (15536, 1351028), (22148, 947696), (23912, 877784), (25312, 829234), (27188, 772016), (27328, 768061), (27572, 761264), (31072, 675514), (44296, 473848), (47579, 441152), (47824, 438892), (48251, 435008), (50624, 414617), (54376, 386008), (55144, 380632), (59231, 354368), (62144, 337757), (88592, 236924), (95158, 220576), (95648, 219446), (96502, 217504), (108752, 193004), (109723, 191296), (110288, 190316), (118462, 177184)]