261707264

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 160

約数和(自身を含む): 664082496

約数和(自身を除く): 402375232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 52, 56, 64, 82, 91, 104, 112, 128, 137, 164, 182, 208, 224, 256, 274, 287, 328, 364, 416, 448, 512, 533, 548, 574, 656, 728, 832, 896, 959, 1066, 1096, 1148, 1312, 1456, 1664, 1781, 1792, 1918, 2132, 2192, 2296, 2624, 2912, 3328, 3562, 3584, 3731, 3836, 4264, 4384, 4592, 5248, 5617, 5824, 6656, 7124, 7462, 7672, 8528, 8768, 9184, 10496, 11234, 11648, 12467, 14248, 14924, 15344, 17056, 17536, 18368, 20992, 22468, 23296, 24934, 28496, 29848, 30688, 34112, 35072, 36736, 39319, 44936, 46592, 49868, 56992, 59696, 61376, 68224, 70144, 73021, 73472, 78638, 89872, 99736, 113984, 119392, 122752, 136448, 146042, 146944, 157276, 179744, 199472, 227968, 238784, 245504, 272896, 292084, 314552, 359488, 398944, 455936, 477568, 491008, 511147, 584168, 629104, 718976, 797888, 911872, 955136, 1022294, 1168336, 1258208, 1437952, 1595776, 1910272, 2044588, 2336672, 2516416, 2875904, 3191552, 4089176, 4673344, 5032832, 6383104, 8178352, 9346688, 10065664, 16356704, 18693376, 20131328, 32713408, 37386752, 65426816, 130853632, 261707264]

約数ペア:

[(1, 261707264), (2, 130853632), (4, 65426816), (7, 37386752), (8, 32713408), (13, 20131328), (14, 18693376), (16, 16356704), (26, 10065664), (28, 9346688), (32, 8178352), (41, 6383104), (52, 5032832), (56, 4673344), (64, 4089176), (82, 3191552), (91, 2875904), (104, 2516416), (112, 2336672), (128, 2044588), (137, 1910272), (164, 1595776), (182, 1437952), (208, 1258208), (224, 1168336), (256, 1022294), (274, 955136), (287, 911872), (328, 797888), (364, 718976), (416, 629104), (448, 584168), (512, 511147), (533, 491008), (548, 477568), (574, 455936), (656, 398944), (728, 359488), (832, 314552), (896, 292084), (959, 272896), (1066, 245504), (1096, 238784), (1148, 227968), (1312, 199472), (1456, 179744), (1664, 157276), (1781, 146944), (1792, 146042), (1918, 136448), (2132, 122752), (2192, 119392), (2296, 113984), (2624, 99736), (2912, 89872), (3328, 78638), (3562, 73472), (3584, 73021), (3731, 70144), (3836, 68224), (4264, 61376), (4384, 59696), (4592, 56992), (5248, 49868), (5617, 46592), (5824, 44936), (6656, 39319), (7124, 36736), (7462, 35072), (7672, 34112), (8528, 30688), (8768, 29848), (9184, 28496), (10496, 24934), (11234, 23296), (11648, 22468), (12467, 20992), (14248, 18368), (14924, 17536), (15344, 17056)]