128201920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 224

約数和(自身を含む): 392679936

約数和(自身を除く): 264478016

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 43, 44, 55, 56, 64, 70, 77, 80, 86, 88, 110, 112, 121, 140, 154, 160, 172, 176, 215, 220, 224, 242, 280, 301, 308, 320, 344, 352, 385, 430, 440, 448, 473, 484, 560, 602, 605, 616, 688, 704, 770, 847, 860, 880, 946, 968, 1120, 1204, 1210, 1232, 1331, 1376, 1505, 1540, 1694, 1720, 1760, 1892, 1936, 2240, 2365, 2408, 2420, 2464, 2662, 2752, 3010, 3080, 3311, 3388, 3440, 3520, 3784, 3872, 4235, 4730, 4816, 4840, 4928, 5203, 5324, 6020, 6160, 6622, 6655, 6776, 6880, 7568, 7744, 8470, 9317, 9460, 9632, 9680, 10406, 10648, 12040, 12320, 13244, 13310, 13552, 13760, 15136, 16555, 16940, 18634, 18920, 19264, 19360, 20812, 21296, 24080, 24640, 26015, 26488, 26620, 27104, 30272, 33110, 33880, 36421, 37268, 37840, 38720, 41624, 42592, 46585, 48160, 52030, 52976, 53240, 54208, 57233, 66220, 67760, 72842, 74536, 75680, 83248, 85184, 93170, 96320, 104060, 105952, 106480, 114466, 132440, 135520, 145684, 149072, 151360, 166496, 182105, 186340, 208120, 211904, 212960, 228932, 264880, 271040, 286165, 291368, 298144, 332992, 364210, 372680, 400631, 416240, 425920, 457864, 529760, 572330, 582736, 596288, 728420, 745360, 801262, 832480, 915728, 1059520, 1144660, 1165472, 1456840, 1490720, 1602524, 1664960, 1831456, 2003155, 2289320, 2330944, 2913680, 2981440, 3205048, 3662912, 4006310, 4578640, 5827360, 6410096, 8012620, 9157280, 11654720, 12820192, 16025240, 18314560, 25640384, 32050480, 64100960, 128201920]

約数ペア:

[(1, 128201920), (2, 64100960), (4, 32050480), (5, 25640384), (7, 18314560), (8, 16025240), (10, 12820192), (11, 11654720), (14, 9157280), (16, 8012620), (20, 6410096), (22, 5827360), (28, 4578640), (32, 4006310), (35, 3662912), (40, 3205048), (43, 2981440), (44, 2913680), (55, 2330944), (56, 2289320), (64, 2003155), (70, 1831456), (77, 1664960), (80, 1602524), (86, 1490720), (88, 1456840), (110, 1165472), (112, 1144660), (121, 1059520), (140, 915728), (154, 832480), (160, 801262), (172, 745360), (176, 728420), (215, 596288), (220, 582736), (224, 572330), (242, 529760), (280, 457864), (301, 425920), (308, 416240), (320, 400631), (344, 372680), (352, 364210), (385, 332992), (430, 298144), (440, 291368), (448, 286165), (473, 271040), (484, 264880), (560, 228932), (602, 212960), (605, 211904), (616, 208120), (688, 186340), (704, 182105), (770, 166496), (847, 151360), (860, 149072), (880, 145684), (946, 135520), (968, 132440), (1120, 114466), (1204, 106480), (1210, 105952), (1232, 104060), (1331, 96320), (1376, 93170), (1505, 85184), (1540, 83248), (1694, 75680), (1720, 74536), (1760, 72842), (1892, 67760), (1936, 66220), (2240, 57233), (2365, 54208), (2408, 53240), (2420, 52976), (2464, 52030), (2662, 48160), (2752, 46585), (3010, 42592), (3080, 41624), (3311, 38720), (3388, 37840), (3440, 37268), (3520, 36421), (3784, 33880), (3872, 33110), (4235, 30272), (4730, 27104), (4816, 26620), (4840, 26488), (4928, 26015), (5203, 24640), (5324, 24080), (6020, 21296), (6160, 20812), (6622, 19360), (6655, 19264), (6776, 18920), (6880, 18634), (7568, 16940), (7744, 16555), (8470, 15136), (9317, 13760), (9460, 13552), (9632, 13310), (9680, 13244), (10406, 12320), (10648, 12040)]