20297388405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{701}}^1$

素因数の和:1039

約数の個数: 128

約数和(自身を含む): 39642670080

約数和(自身を除く): 19345281675

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 37, 87, 105, 111, 145, 185, 203, 257, 259, 435, 555, 609, 701, 771, 777, 1015, 1073, 1285, 1295, 1799, 2103, 3045, 3219, 3505, 3855, 3885, 4907, 5365, 5397, 7453, 7511, 8995, 9509, 10515, 14721, 16095, 20329, 22359, 22533, 24535, 25937, 26985, 28527, 37265, 37555, 47545, 52171, 60987, 66563, 73605, 77811, 101645, 111795, 112665, 129685, 142303, 142635, 156513, 180157, 181559, 199689, 260855, 275761, 304935, 332815, 389055, 426909, 540471, 544677, 711515, 752173, 782565, 827283, 900785, 907795, 998445, 1261099, 1378805, 1930327, 2134545, 2256519, 2702355, 2723385, 3760865, 3783297, 4136415, 5224553, 5265211, 5790981, 6305495, 6665809, 9651635, 11282595, 15673659, 15795633, 18916485, 19997427, 26122765, 26326055, 28954905, 33329045, 36571871, 46660663, 78368295, 78978165, 99987135, 109715613, 139981989, 182859355, 193308461, 233303315, 548578065, 579925383, 699909945, 966542305, 1353159227, 2899626915, 4059477681, 6765796135, 20297388405]

約数ペア:

[(1, 20297388405), (3, 6765796135), (5, 4059477681), (7, 2899626915), (15, 1353159227), (21, 966542305), (29, 699909945), (35, 579925383), (37, 548578065), (87, 233303315), (105, 193308461), (111, 182859355), (145, 139981989), (185, 109715613), (203, 99987135), (257, 78978165), (259, 78368295), (435, 46660663), (555, 36571871), (609, 33329045), (701, 28954905), (771, 26326055), (777, 26122765), (1015, 19997427), (1073, 18916485), (1285, 15795633), (1295, 15673659), (1799, 11282595), (2103, 9651635), (3045, 6665809), (3219, 6305495), (3505, 5790981), (3855, 5265211), (3885, 5224553), (4907, 4136415), (5365, 3783297), (5397, 3760865), (7453, 2723385), (7511, 2702355), (8995, 2256519), (9509, 2134545), (10515, 1930327), (14721, 1378805), (16095, 1261099), (20329, 998445), (22359, 907795), (22533, 900785), (24535, 827283), (25937, 782565), (26985, 752173), (28527, 711515), (37265, 544677), (37555, 540471), (47545, 426909), (52171, 389055), (60987, 332815), (66563, 304935), (73605, 275761), (77811, 260855), (101645, 199689), (111795, 181559), (112665, 180157), (129685, 156513), (142303, 142635)]