311981488

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 767957792

約数和(自身を除く): 455976304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 47, 52, 56, 91, 94, 97, 104, 112, 182, 188, 194, 208, 329, 364, 376, 388, 611, 658, 679, 728, 752, 776, 1222, 1261, 1316, 1358, 1456, 1552, 2209, 2444, 2522, 2632, 2716, 4277, 4418, 4559, 4888, 5044, 5264, 5432, 8554, 8827, 8836, 9118, 9776, 10088, 10864, 15463, 17108, 17654, 17672, 18236, 20176, 28717, 30926, 31913, 34216, 35308, 35344, 36472, 57434, 59267, 61852, 63826, 68432, 70616, 72944, 114868, 118534, 123704, 127652, 141232, 201019, 214273, 229736, 237068, 247408, 255304, 402038, 414869, 428546, 459472, 474136, 510608, 804076, 829738, 857092, 948272, 1499911, 1608152, 1659476, 1714184, 2785549, 2999822, 3216304, 3318952, 3428368, 5571098, 5999644, 6637904, 11142196, 11999288, 19498843, 22284392, 23998576, 38997686, 44568784, 77995372, 155990744, 311981488]

約数ペア:

[(1, 311981488), (2, 155990744), (4, 77995372), (7, 44568784), (8, 38997686), (13, 23998576), (14, 22284392), (16, 19498843), (26, 11999288), (28, 11142196), (47, 6637904), (52, 5999644), (56, 5571098), (91, 3428368), (94, 3318952), (97, 3216304), (104, 2999822), (112, 2785549), (182, 1714184), (188, 1659476), (194, 1608152), (208, 1499911), (329, 948272), (364, 857092), (376, 829738), (388, 804076), (611, 510608), (658, 474136), (679, 459472), (728, 428546), (752, 414869), (776, 402038), (1222, 255304), (1261, 247408), (1316, 237068), (1358, 229736), (1456, 214273), (1552, 201019), (2209, 141232), (2444, 127652), (2522, 123704), (2632, 118534), (2716, 114868), (4277, 72944), (4418, 70616), (4559, 68432), (4888, 63826), (5044, 61852), (5264, 59267), (5432, 57434), (8554, 36472), (8827, 35344), (8836, 35308), (9118, 34216), (9776, 31913), (10088, 30926), (10864, 28717), (15463, 20176), (17108, 18236), (17654, 17672)]