20797019488

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^2\times {\mathrm{149}}^1\times {\mathrm{337}}^1$

素因数の和:589

約数の個数: 144

約数和(自身を含む): 48371450400

約数和(自身を除く): 27574430912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 149, 172, 224, 298, 301, 337, 344, 596, 602, 674, 688, 1043, 1192, 1204, 1348, 1376, 1849, 2086, 2359, 2384, 2408, 2696, 3698, 4172, 4718, 4768, 4816, 5392, 6407, 7396, 8344, 9436, 9632, 10784, 12814, 12943, 14491, 14792, 16688, 18872, 25628, 25886, 28982, 29584, 33376, 37744, 44849, 50213, 51256, 51772, 57964, 59168, 75488, 89698, 100426, 101437, 102512, 103544, 115928, 179396, 200852, 202874, 205024, 207088, 231856, 275501, 351491, 358792, 401704, 405748, 414176, 463712, 551002, 623113, 702982, 717584, 803408, 811496, 1102004, 1246226, 1405964, 1435168, 1606816, 1622992, 1928507, 2159159, 2204008, 2492452, 2811928, 3245984, 3857014, 4318318, 4361791, 4408016, 4984904, 5623856, 7714028, 8636636, 8723582, 8816032, 9969808, 11247712, 15114113, 15428056, 17273272, 17447164, 19939616, 30228226, 30856112, 34546544, 34894328, 60456452, 61712224, 69093088, 69788656, 92843837, 120912904, 139577312, 185687674, 241825808, 371375348, 483651616, 649906859, 742750696, 1299813718, 1485501392, 2599627436, 2971002784, 5199254872, 10398509744, 20797019488]

約数ペア:

[(1, 20797019488), (2, 10398509744), (4, 5199254872), (7, 2971002784), (8, 2599627436), (14, 1485501392), (16, 1299813718), (28, 742750696), (32, 649906859), (43, 483651616), (56, 371375348), (86, 241825808), (112, 185687674), (149, 139577312), (172, 120912904), (224, 92843837), (298, 69788656), (301, 69093088), (337, 61712224), (344, 60456452), (596, 34894328), (602, 34546544), (674, 30856112), (688, 30228226), (1043, 19939616), (1192, 17447164), (1204, 17273272), (1348, 15428056), (1376, 15114113), (1849, 11247712), (2086, 9969808), (2359, 8816032), (2384, 8723582), (2408, 8636636), (2696, 7714028), (3698, 5623856), (4172, 4984904), (4718, 4408016), (4768, 4361791), (4816, 4318318), (5392, 3857014), (6407, 3245984), (7396, 2811928), (8344, 2492452), (9436, 2204008), (9632, 2159159), (10784, 1928507), (12814, 1622992), (12943, 1606816), (14491, 1435168), (14792, 1405964), (16688, 1246226), (18872, 1102004), (25628, 811496), (25886, 803408), (28982, 717584), (29584, 702982), (33376, 623113), (37744, 551002), (44849, 463712), (50213, 414176), (51256, 405748), (51772, 401704), (57964, 358792), (59168, 351491), (75488, 275501), (89698, 231856), (100426, 207088), (101437, 205024), (102512, 202874), (103544, 200852), (115928, 179396)]