20801984952

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{10009}}^1$

素因数の和:10253

約数の個数: 128

約数和(自身を含む): 60540480000

約数和(自身を除く): 39738495048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 89, 139, 168, 178, 267, 278, 356, 417, 534, 556, 623, 712, 834, 973, 1068, 1112, 1246, 1668, 1869, 1946, 2136, 2492, 2919, 3336, 3738, 3892, 4984, 5838, 7476, 7784, 10009, 11676, 12371, 14952, 20018, 23352, 24742, 30027, 37113, 40036, 49484, 60054, 70063, 74226, 80072, 86597, 98968, 120108, 140126, 148452, 173194, 210189, 240216, 259791, 280252, 296904, 346388, 420378, 519582, 560504, 692776, 840756, 890801, 1039164, 1391251, 1681512, 1781602, 2078328, 2672403, 2782502, 3563204, 4173753, 5344806, 5565004, 6235607, 7126408, 8347506, 9738757, 10689612, 11130008, 12471214, 16695012, 18706821, 19477514, 21379224, 24942428, 29216271, 33390024, 37413642, 38955028, 49884856, 58432542, 74827284, 77910056, 116865084, 123821339, 149654568, 233730168, 247642678, 371464017, 495285356, 742928034, 866749373, 990570712, 1485856068, 1733498746, 2600248119, 2971712136, 3466997492, 5200496238, 6933994984, 10400992476, 20801984952]

約数ペア:

[(1, 20801984952), (2, 10400992476), (3, 6933994984), (4, 5200496238), (6, 3466997492), (7, 2971712136), (8, 2600248119), (12, 1733498746), (14, 1485856068), (21, 990570712), (24, 866749373), (28, 742928034), (42, 495285356), (56, 371464017), (84, 247642678), (89, 233730168), (139, 149654568), (168, 123821339), (178, 116865084), (267, 77910056), (278, 74827284), (356, 58432542), (417, 49884856), (534, 38955028), (556, 37413642), (623, 33390024), (712, 29216271), (834, 24942428), (973, 21379224), (1068, 19477514), (1112, 18706821), (1246, 16695012), (1668, 12471214), (1869, 11130008), (1946, 10689612), (2136, 9738757), (2492, 8347506), (2919, 7126408), (3336, 6235607), (3738, 5565004), (3892, 5344806), (4984, 4173753), (5838, 3563204), (7476, 2782502), (7784, 2672403), (10009, 2078328), (11676, 1781602), (12371, 1681512), (14952, 1391251), (20018, 1039164), (23352, 890801), (24742, 840756), (30027, 692776), (37113, 560504), (40036, 519582), (49484, 420378), (60054, 346388), (70063, 296904), (74226, 280252), (80072, 259791), (86597, 240216), (98968, 210189), (120108, 173194), (140126, 148452)]