20090939505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2263

約数の個数: 128

約数和(自身を含む): 40857600000

約数和(自身を除く): 20766660495

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 91, 105, 111, 185, 195, 199, 259, 273, 455, 481, 555, 597, 777, 995, 1295, 1365, 1393, 1443, 1999, 2405, 2587, 2985, 3367, 3885, 4179, 5997, 6965, 7215, 7363, 7761, 9995, 10101, 12935, 13993, 16835, 18109, 20895, 22089, 25987, 29985, 36815, 38805, 41979, 50505, 51541, 54327, 69965, 73963, 77961, 90545, 95719, 110445, 129935, 154623, 181909, 209895, 221889, 257705, 271635, 287157, 369815, 389805, 397801, 478595, 517741, 545727, 670033, 773115, 909545, 961519, 1109445, 1193403, 1435785, 1553223, 1989005, 2010099, 2588705, 2728635, 2784607, 2884557, 3350165, 4807595, 5171413, 5967015, 6730633, 7766115, 8353821, 10050495, 13923035, 14422785, 14718637, 15514239, 20191899, 25857065, 33653165, 36199891, 41769105, 44155911, 73593185, 77571195, 100959495, 103030459, 108599673, 180999455, 191342281, 220779555, 309091377, 515152295, 542998365, 574026843, 956711405, 1339395967, 1545456885, 2870134215, 4018187901, 6696979835, 20090939505]

約数ペア:

[(1, 20090939505), (3, 6696979835), (5, 4018187901), (7, 2870134215), (13, 1545456885), (15, 1339395967), (21, 956711405), (35, 574026843), (37, 542998365), (39, 515152295), (65, 309091377), (91, 220779555), (105, 191342281), (111, 180999455), (185, 108599673), (195, 103030459), (199, 100959495), (259, 77571195), (273, 73593185), (455, 44155911), (481, 41769105), (555, 36199891), (597, 33653165), (777, 25857065), (995, 20191899), (1295, 15514239), (1365, 14718637), (1393, 14422785), (1443, 13923035), (1999, 10050495), (2405, 8353821), (2587, 7766115), (2985, 6730633), (3367, 5967015), (3885, 5171413), (4179, 4807595), (5997, 3350165), (6965, 2884557), (7215, 2784607), (7363, 2728635), (7761, 2588705), (9995, 2010099), (10101, 1989005), (12935, 1553223), (13993, 1435785), (16835, 1193403), (18109, 1109445), (20895, 961519), (22089, 909545), (25987, 773115), (29985, 670033), (36815, 545727), (38805, 517741), (41979, 478595), (50505, 397801), (51541, 389805), (54327, 369815), (69965, 287157), (73963, 271635), (77961, 257705), (90545, 221889), (95719, 209895), (110445, 181909), (129935, 154623)]