257115495

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 523998720

約数和(自身を除く): 266883225

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 71, 91, 105, 147, 195, 213, 245, 273, 355, 379, 455, 497, 637, 735, 923, 1065, 1137, 1365, 1491, 1895, 1911, 2485, 2653, 2769, 3185, 3479, 4615, 4927, 5685, 6461, 7455, 7959, 9555, 10437, 13265, 13845, 14781, 17395, 18571, 19383, 24635, 26909, 32305, 34489, 39795, 45227, 52185, 55713, 73905, 80727, 92855, 96915, 103467, 134545, 135681, 172445, 188363, 226135, 241423, 278565, 349817, 403635, 517335, 565089, 678405, 724269, 941815, 1049451, 1207115, 1318541, 1749085, 2448719, 2825445, 3621345, 3955623, 5247255, 6592705, 7346157, 12243595, 17141033, 19778115, 36730785, 51423099, 85705165, 257115495]

約数ペア:

[(1, 257115495), (3, 85705165), (5, 51423099), (7, 36730785), (13, 19778115), (15, 17141033), (21, 12243595), (35, 7346157), (39, 6592705), (49, 5247255), (65, 3955623), (71, 3621345), (91, 2825445), (105, 2448719), (147, 1749085), (195, 1318541), (213, 1207115), (245, 1049451), (273, 941815), (355, 724269), (379, 678405), (455, 565089), (497, 517335), (637, 403635), (735, 349817), (923, 278565), (1065, 241423), (1137, 226135), (1365, 188363), (1491, 172445), (1895, 135681), (1911, 134545), (2485, 103467), (2653, 96915), (2769, 92855), (3185, 80727), (3479, 73905), (4615, 55713), (4927, 52185), (5685, 45227), (6461, 39795), (7455, 34489), (7959, 32305), (9555, 26909), (10437, 24635), (13265, 19383), (13845, 18571), (14781, 17395)]