81960480

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 288

約数和(自身を含む): 328333824

約数和(自身を除く): 246373344

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 96, 105, 112, 120, 126, 140, 141, 144, 160, 168, 173, 180, 188, 210, 224, 235, 240, 252, 280, 282, 288, 315, 329, 336, 346, 360, 376, 420, 423, 470, 480, 504, 519, 560, 564, 630, 658, 672, 692, 705, 720, 752, 840, 846, 865, 940, 987, 1008, 1038, 1120, 1128, 1211, 1260, 1316, 1384, 1410, 1440, 1504, 1557, 1645, 1680, 1692, 1730, 1880, 1974, 2016, 2076, 2115, 2256, 2422, 2520, 2595, 2632, 2768, 2820, 2961, 3114, 3290, 3360, 3384, 3460, 3633, 3760, 3948, 4152, 4230, 4512, 4844, 4935, 5040, 5190, 5264, 5536, 5640, 5922, 6055, 6228, 6580, 6768, 6920, 7266, 7520, 7785, 7896, 8131, 8304, 8460, 9688, 9870, 10080, 10380, 10528, 10899, 11280, 11844, 12110, 12456, 13160, 13536, 13840, 14532, 14805, 15570, 15792, 16262, 16608, 16920, 18165, 19376, 19740, 20760, 21798, 22560, 23688, 24220, 24393, 24912, 26320, 27680, 29064, 29610, 31140, 31584, 32524, 33840, 36330, 38752, 39480, 40655, 41520, 43596, 47376, 48440, 48786, 49824, 52640, 54495, 56917, 58128, 59220, 62280, 65048, 67680, 72660, 73179, 78960, 81310, 83040, 87192, 94752, 96880, 97572, 108990, 113834, 116256, 118440, 121965, 124560, 130096, 145320, 146358, 157920, 162620, 170751, 174384, 193760, 195144, 217980, 227668, 236880, 243930, 249120, 260192, 284585, 290640, 292716, 325240, 341502, 348768, 365895, 390288, 435960, 455336, 473760, 487860, 512253, 569170, 581280, 585432, 650480, 683004, 731790, 780576, 853755, 871920, 910672, 975720, 1024506, 1138340, 1170864, 1300960, 1366008, 1463580, 1707510, 1743840, 1821344, 1951440, 2049012, 2276680, 2341728, 2561265, 2732016, 2927160, 3415020, 3902880, 4098024, 4553360, 5122530, 5464032, 5854320, 6830040, 8196048, 9106720, 10245060, 11708640, 13660080, 16392096, 20490120, 27320160, 40980240, 81960480]

約数ペア:

[(1, 81960480), (2, 40980240), (3, 27320160), (4, 20490120), (5, 16392096), (6, 13660080), (7, 11708640), (8, 10245060), (9, 9106720), (10, 8196048), (12, 6830040), (14, 5854320), (15, 5464032), (16, 5122530), (18, 4553360), (20, 4098024), (21, 3902880), (24, 3415020), (28, 2927160), (30, 2732016), (32, 2561265), (35, 2341728), (36, 2276680), (40, 2049012), (42, 1951440), (45, 1821344), (47, 1743840), (48, 1707510), (56, 1463580), (60, 1366008), (63, 1300960), (70, 1170864), (72, 1138340), (80, 1024506), (84, 975720), (90, 910672), (94, 871920), (96, 853755), (105, 780576), (112, 731790), (120, 683004), (126, 650480), (140, 585432), (141, 581280), (144, 569170), (160, 512253), (168, 487860), (173, 473760), (180, 455336), (188, 435960), (210, 390288), (224, 365895), (235, 348768), (240, 341502), (252, 325240), (280, 292716), (282, 290640), (288, 284585), (315, 260192), (329, 249120), (336, 243930), (346, 236880), (360, 227668), (376, 217980), (420, 195144), (423, 193760), (470, 174384), (480, 170751), (504, 162620), (519, 157920), (560, 146358), (564, 145320), (630, 130096), (658, 124560), (672, 121965), (692, 118440), (705, 116256), (720, 113834), (752, 108990), (840, 97572), (846, 96880), (865, 94752), (940, 87192), (987, 83040), (1008, 81310), (1038, 78960), (1120, 73179), (1128, 72660), (1211, 67680), (1260, 65048), (1316, 62280), (1384, 59220), (1410, 58128), (1440, 56917), (1504, 54495), (1557, 52640), (1645, 49824), (1680, 48786), (1692, 48440), (1730, 47376), (1880, 43596), (1974, 41520), (2016, 40655), (2076, 39480), (2115, 38752), (2256, 36330), (2422, 33840), (2520, 32524), (2595, 31584), (2632, 31140), (2768, 29610), (2820, 29064), (2961, 27680), (3114, 26320), (3290, 24912), (3360, 24393), (3384, 24220), (3460, 23688), (3633, 22560), (3760, 21798), (3948, 20760), (4152, 19740), (4230, 19376), (4512, 18165), (4844, 16920), (4935, 16608), (5040, 16262), (5190, 15792), (5264, 15570), (5536, 14805), (5640, 14532), (5922, 13840), (6055, 13536), (6228, 13160), (6580, 12456), (6768, 12110), (6920, 11844), (7266, 11280), (7520, 10899), (7785, 10528), (7896, 10380), (8131, 10080), (8304, 9870), (8460, 9688)]