128628864

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:452

約数の個数: 256

約数和(自身を含む): 468384000

約数和(自身を除く): 339755136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 64, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 128, 144, 156, 168, 182, 189, 192, 208, 216, 224, 234, 252, 273, 288, 312, 336, 351, 364, 378, 384, 409, 416, 432, 448, 468, 504, 546, 576, 624, 672, 702, 728, 756, 818, 819, 832, 864, 896, 936, 1008, 1092, 1152, 1227, 1248, 1344, 1404, 1456, 1512, 1636, 1638, 1664, 1728, 1872, 2016, 2184, 2454, 2457, 2496, 2688, 2808, 2863, 2912, 3024, 3272, 3276, 3456, 3681, 3744, 4032, 4368, 4908, 4914, 4992, 5317, 5616, 5726, 5824, 6048, 6544, 6552, 7362, 7488, 8064, 8589, 8736, 9816, 9828, 10634, 11043, 11232, 11452, 11648, 12096, 13088, 13104, 14724, 14976, 15951, 17178, 17472, 19632, 19656, 21268, 22086, 22464, 22904, 24192, 25767, 26176, 26208, 29448, 31902, 34356, 34944, 37219, 39264, 39312, 42536, 44172, 44928, 45808, 47853, 51534, 52352, 52416, 58896, 63804, 68712, 74438, 77301, 78528, 78624, 85072, 88344, 91616, 95706, 103068, 104832, 111657, 117792, 127608, 137424, 143559, 148876, 154602, 157056, 157248, 170144, 176688, 183232, 191412, 206136, 223314, 235584, 255216, 274848, 287118, 297752, 309204, 314496, 334971, 340288, 353376, 366464, 382824, 412272, 446628, 471168, 510432, 549696, 574236, 595504, 618408, 669942, 680576, 706752, 765648, 824544, 893256, 1004913, 1020864, 1099392, 1148472, 1191008, 1236816, 1339884, 1413504, 1531296, 1649088, 1786512, 2009826, 2041728, 2296944, 2382016, 2473632, 2679768, 3062592, 3298176, 3573024, 4019652, 4593888, 4764032, 4947264, 5359536, 6125184, 7146048, 8039304, 9187776, 9894528, 10719072, 14292096, 16078608, 18375552, 21438144, 32157216, 42876288, 64314432, 128628864]

約数ペア:

[(1, 128628864), (2, 64314432), (3, 42876288), (4, 32157216), (6, 21438144), (7, 18375552), (8, 16078608), (9, 14292096), (12, 10719072), (13, 9894528), (14, 9187776), (16, 8039304), (18, 7146048), (21, 6125184), (24, 5359536), (26, 4947264), (27, 4764032), (28, 4593888), (32, 4019652), (36, 3573024), (39, 3298176), (42, 3062592), (48, 2679768), (52, 2473632), (54, 2382016), (56, 2296944), (63, 2041728), (64, 2009826), (72, 1786512), (78, 1649088), (84, 1531296), (91, 1413504), (96, 1339884), (104, 1236816), (108, 1191008), (112, 1148472), (117, 1099392), (126, 1020864), (128, 1004913), (144, 893256), (156, 824544), (168, 765648), (182, 706752), (189, 680576), (192, 669942), (208, 618408), (216, 595504), (224, 574236), (234, 549696), (252, 510432), (273, 471168), (288, 446628), (312, 412272), (336, 382824), (351, 366464), (364, 353376), (378, 340288), (384, 334971), (409, 314496), (416, 309204), (432, 297752), (448, 287118), (468, 274848), (504, 255216), (546, 235584), (576, 223314), (624, 206136), (672, 191412), (702, 183232), (728, 176688), (756, 170144), (818, 157248), (819, 157056), (832, 154602), (864, 148876), (896, 143559), (936, 137424), (1008, 127608), (1092, 117792), (1152, 111657), (1227, 104832), (1248, 103068), (1344, 95706), (1404, 91616), (1456, 88344), (1512, 85072), (1636, 78624), (1638, 78528), (1664, 77301), (1728, 74438), (1872, 68712), (2016, 63804), (2184, 58896), (2454, 52416), (2457, 52352), (2496, 51534), (2688, 47853), (2808, 45808), (2863, 44928), (2912, 44172), (3024, 42536), (3272, 39312), (3276, 39264), (3456, 37219), (3681, 34944), (3744, 34356), (4032, 31902), (4368, 29448), (4908, 26208), (4914, 26176), (4992, 25767), (5317, 24192), (5616, 22904), (5726, 22464), (5824, 22086), (6048, 21268), (6544, 19656), (6552, 19632), (7362, 17472), (7488, 17178), (8064, 15951), (8589, 14976), (8736, 14724), (9816, 13104), (9828, 13088), (10634, 12096), (11043, 11648), (11232, 11452)]