131211808

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 144

約数和(自身を含む): 333618264

約数和(自身を除く): 202406456

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 49, 52, 56, 82, 91, 98, 104, 112, 157, 164, 182, 196, 208, 224, 287, 314, 328, 364, 392, 416, 533, 574, 628, 637, 656, 728, 784, 1066, 1099, 1148, 1256, 1274, 1312, 1456, 1568, 2009, 2041, 2132, 2198, 2296, 2512, 2548, 2912, 3731, 4018, 4082, 4264, 4396, 4592, 5024, 5096, 6437, 7462, 7693, 8036, 8164, 8528, 8792, 9184, 10192, 12874, 14287, 14924, 15386, 16072, 16328, 17056, 17584, 20384, 25748, 26117, 28574, 29848, 30772, 32144, 32656, 35168, 45059, 51496, 52234, 57148, 59696, 61544, 64288, 65312, 83681, 90118, 100009, 102992, 104468, 114296, 119392, 123088, 167362, 180236, 200018, 205984, 208936, 228592, 246176, 315413, 334724, 360472, 400036, 417872, 457184, 585767, 630826, 669448, 720944, 800072, 835744, 1171534, 1261652, 1338896, 1441888, 1600144, 2343068, 2523304, 2677792, 3200288, 4100369, 4686136, 5046608, 8200738, 9372272, 10093216, 16401476, 18744544, 32802952, 65605904, 131211808]

約数ペア:

[(1, 131211808), (2, 65605904), (4, 32802952), (7, 18744544), (8, 16401476), (13, 10093216), (14, 9372272), (16, 8200738), (26, 5046608), (28, 4686136), (32, 4100369), (41, 3200288), (49, 2677792), (52, 2523304), (56, 2343068), (82, 1600144), (91, 1441888), (98, 1338896), (104, 1261652), (112, 1171534), (157, 835744), (164, 800072), (182, 720944), (196, 669448), (208, 630826), (224, 585767), (287, 457184), (314, 417872), (328, 400036), (364, 360472), (392, 334724), (416, 315413), (533, 246176), (574, 228592), (628, 208936), (637, 205984), (656, 200018), (728, 180236), (784, 167362), (1066, 123088), (1099, 119392), (1148, 114296), (1256, 104468), (1274, 102992), (1312, 100009), (1456, 90118), (1568, 83681), (2009, 65312), (2041, 64288), (2132, 61544), (2198, 59696), (2296, 57148), (2512, 52234), (2548, 51496), (2912, 45059), (3731, 35168), (4018, 32656), (4082, 32144), (4264, 30772), (4396, 29848), (4592, 28574), (5024, 26117), (5096, 25748), (6437, 20384), (7462, 17584), (7693, 17056), (8036, 16328), (8164, 16072), (8528, 15386), (8792, 14924), (9184, 14287), (10192, 12874)]