128378592

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:873

約数の個数: 144

約数和(自身を含む): 398034000

約数和(自身を除く): 269655408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 29, 32, 36, 38, 48, 57, 58, 72, 76, 87, 96, 114, 116, 144, 152, 171, 174, 228, 232, 261, 288, 304, 342, 348, 456, 464, 522, 551, 608, 684, 696, 809, 912, 928, 1044, 1102, 1368, 1392, 1618, 1653, 1824, 2088, 2204, 2427, 2736, 2784, 3236, 3306, 4176, 4408, 4854, 4959, 5472, 6472, 6612, 7281, 8352, 8816, 9708, 9918, 12944, 13224, 14562, 15371, 17632, 19416, 19836, 23461, 25888, 26448, 29124, 30742, 38832, 39672, 46113, 46922, 52896, 58248, 61484, 70383, 77664, 79344, 92226, 93844, 116496, 122968, 138339, 140766, 158688, 184452, 187688, 211149, 232992, 245936, 276678, 281532, 368904, 375376, 422298, 445759, 491872, 553356, 563064, 737808, 750752, 844596, 891518, 1106712, 1126128, 1337277, 1475616, 1689192, 1783036, 2213424, 2252256, 2674554, 3378384, 3566072, 4011831, 4426848, 5349108, 6756768, 7132144, 8023662, 10698216, 14264288, 16047324, 21396432, 32094648, 42792864, 64189296, 128378592]

約数ペア:

[(1, 128378592), (2, 64189296), (3, 42792864), (4, 32094648), (6, 21396432), (8, 16047324), (9, 14264288), (12, 10698216), (16, 8023662), (18, 7132144), (19, 6756768), (24, 5349108), (29, 4426848), (32, 4011831), (36, 3566072), (38, 3378384), (48, 2674554), (57, 2252256), (58, 2213424), (72, 1783036), (76, 1689192), (87, 1475616), (96, 1337277), (114, 1126128), (116, 1106712), (144, 891518), (152, 844596), (171, 750752), (174, 737808), (228, 563064), (232, 553356), (261, 491872), (288, 445759), (304, 422298), (342, 375376), (348, 368904), (456, 281532), (464, 276678), (522, 245936), (551, 232992), (608, 211149), (684, 187688), (696, 184452), (809, 158688), (912, 140766), (928, 138339), (1044, 122968), (1102, 116496), (1368, 93844), (1392, 92226), (1618, 79344), (1653, 77664), (1824, 70383), (2088, 61484), (2204, 58248), (2427, 52896), (2736, 46922), (2784, 46113), (3236, 39672), (3306, 38832), (4176, 30742), (4408, 29124), (4854, 26448), (4959, 25888), (5472, 23461), (6472, 19836), (6612, 19416), (7281, 17632), (8352, 15371), (8816, 14562), (9708, 13224), (9918, 12944)]