1980928768

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:291

約数の個数: 216

約数和(自身を含む): 5075137536

約数和(自身を除く): 3094208768

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 91, 104, 112, 124, 128, 169, 182, 208, 211, 217, 224, 248, 256, 338, 364, 403, 416, 422, 434, 448, 496, 676, 728, 806, 832, 844, 868, 896, 992, 1183, 1352, 1456, 1477, 1612, 1664, 1688, 1736, 1792, 1984, 2366, 2704, 2743, 2821, 2912, 2954, 3224, 3328, 3376, 3472, 3968, 4732, 5239, 5408, 5486, 5642, 5824, 5908, 6448, 6541, 6752, 6944, 7936, 9464, 10478, 10816, 10972, 11284, 11648, 11816, 12896, 13082, 13504, 13888, 18928, 19201, 20956, 21632, 21944, 22568, 23296, 23632, 25792, 26164, 27008, 27776, 35659, 36673, 37856, 38402, 41912, 43264, 43888, 45136, 45787, 47264, 51584, 52328, 54016, 55552, 71318, 73346, 75712, 76804, 83824, 85033, 87776, 90272, 91574, 94528, 103168, 104656, 142636, 146692, 151424, 153608, 167648, 170066, 175552, 180544, 183148, 189056, 209312, 249613, 285272, 293384, 302848, 307216, 335296, 340132, 351104, 361088, 366296, 378112, 418624, 499226, 570544, 586768, 595231, 614432, 670592, 680264, 702208, 722176, 732592, 837248, 998452, 1105429, 1141088, 1173536, 1190462, 1228864, 1341184, 1360528, 1465184, 1674496, 1996904, 2210858, 2282176, 2347072, 2380924, 2457728, 2721056, 2930368, 3993808, 4421716, 4564352, 4694144, 4761848, 4915456, 5442112, 5860736, 7738003, 7987616, 8843432, 9128704, 9388288, 9523696, 10884224, 11721472, 15476006, 15975232, 17686864, 19047392, 21768448, 30952012, 31950464, 35373728, 38094784, 61904024, 63900928, 70747456, 76189568, 123808048, 141494912, 152379136, 247616096, 282989824, 495232192, 990464384, 1980928768]

約数ペア:

[(1, 1980928768), (2, 990464384), (4, 495232192), (7, 282989824), (8, 247616096), (13, 152379136), (14, 141494912), (16, 123808048), (26, 76189568), (28, 70747456), (31, 63900928), (32, 61904024), (52, 38094784), (56, 35373728), (62, 31950464), (64, 30952012), (91, 21768448), (104, 19047392), (112, 17686864), (124, 15975232), (128, 15476006), (169, 11721472), (182, 10884224), (208, 9523696), (211, 9388288), (217, 9128704), (224, 8843432), (248, 7987616), (256, 7738003), (338, 5860736), (364, 5442112), (403, 4915456), (416, 4761848), (422, 4694144), (434, 4564352), (448, 4421716), (496, 3993808), (676, 2930368), (728, 2721056), (806, 2457728), (832, 2380924), (844, 2347072), (868, 2282176), (896, 2210858), (992, 1996904), (1183, 1674496), (1352, 1465184), (1456, 1360528), (1477, 1341184), (1612, 1228864), (1664, 1190462), (1688, 1173536), (1736, 1141088), (1792, 1105429), (1984, 998452), (2366, 837248), (2704, 732592), (2743, 722176), (2821, 702208), (2912, 680264), (2954, 670592), (3224, 614432), (3328, 595231), (3376, 586768), (3472, 570544), (3968, 499226), (4732, 418624), (5239, 378112), (5408, 366296), (5486, 361088), (5642, 351104), (5824, 340132), (5908, 335296), (6448, 307216), (6541, 302848), (6752, 293384), (6944, 285272), (7936, 249613), (9464, 209312), (10478, 189056), (10816, 183148), (10972, 180544), (11284, 175552), (11648, 170066), (11816, 167648), (12896, 153608), (13082, 151424), (13504, 146692), (13888, 142636), (18928, 104656), (19201, 103168), (20956, 94528), (21632, 91574), (21944, 90272), (22568, 87776), (23296, 85033), (23632, 83824), (25792, 76804), (26164, 75712), (27008, 73346), (27776, 71318), (35659, 55552), (36673, 54016), (37856, 52328), (38402, 51584), (41912, 47264), (43264, 45787), (43888, 45136)]