208778136

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:393

約数の個数: 128

約数和(自身を含む): 616826880

約数和(自身を除く): 408048744

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 137, 141, 168, 188, 193, 274, 282, 329, 376, 386, 411, 548, 564, 579, 658, 772, 822, 959, 987, 1096, 1128, 1158, 1316, 1351, 1544, 1644, 1918, 1974, 2316, 2632, 2702, 2877, 3288, 3836, 3948, 4053, 4632, 5404, 5754, 6439, 7672, 7896, 8106, 9071, 10808, 11508, 12878, 16212, 18142, 19317, 23016, 25756, 26441, 27213, 32424, 36284, 38634, 45073, 51512, 52882, 54426, 63497, 72568, 77268, 79323, 90146, 105764, 108852, 126994, 135219, 154536, 158646, 180292, 185087, 190491, 211528, 217704, 253988, 270438, 317292, 360584, 370174, 380982, 507976, 540876, 555261, 634584, 740348, 761964, 1081752, 1110522, 1242727, 1480696, 1523928, 2221044, 2485454, 3728181, 4442088, 4970908, 7456362, 8699089, 9941816, 14912724, 17398178, 26097267, 29825448, 34796356, 52194534, 69592712, 104389068, 208778136]

約数ペア:

[(1, 208778136), (2, 104389068), (3, 69592712), (4, 52194534), (6, 34796356), (7, 29825448), (8, 26097267), (12, 17398178), (14, 14912724), (21, 9941816), (24, 8699089), (28, 7456362), (42, 4970908), (47, 4442088), (56, 3728181), (84, 2485454), (94, 2221044), (137, 1523928), (141, 1480696), (168, 1242727), (188, 1110522), (193, 1081752), (274, 761964), (282, 740348), (329, 634584), (376, 555261), (386, 540876), (411, 507976), (548, 380982), (564, 370174), (579, 360584), (658, 317292), (772, 270438), (822, 253988), (959, 217704), (987, 211528), (1096, 190491), (1128, 185087), (1158, 180292), (1316, 158646), (1351, 154536), (1544, 135219), (1644, 126994), (1918, 108852), (1974, 105764), (2316, 90146), (2632, 79323), (2702, 77268), (2877, 72568), (3288, 63497), (3836, 54426), (3948, 52882), (4053, 51512), (4632, 45073), (5404, 38634), (5754, 36284), (6439, 32424), (7672, 27213), (7896, 26441), (8106, 25756), (9071, 23016), (10808, 19317), (11508, 18142), (12878, 16212)]