1561081984

素因数分解:

$2^7\times 7^2\times {\mathrm{11}}^4\times {\mathrm{17}}^1$

素因数の和:89

約数の個数: 240

約数和(自身を含む): 4213551150

約数和(自身を除く): 2652469166

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 44, 49, 56, 64, 68, 77, 88, 98, 112, 119, 121, 128, 136, 154, 176, 187, 196, 224, 238, 242, 272, 308, 352, 374, 392, 448, 476, 484, 539, 544, 616, 704, 748, 784, 833, 847, 896, 952, 968, 1078, 1088, 1232, 1309, 1331, 1408, 1496, 1568, 1666, 1694, 1904, 1936, 2057, 2156, 2176, 2464, 2618, 2662, 2992, 3136, 3332, 3388, 3808, 3872, 4114, 4312, 4928, 5236, 5324, 5929, 5984, 6272, 6664, 6776, 7616, 7744, 8228, 8624, 9163, 9317, 9856, 10472, 10648, 11858, 11968, 13328, 13552, 14399, 14641, 15232, 15488, 16456, 17248, 18326, 18634, 20944, 21296, 22627, 23716, 23936, 26656, 27104, 28798, 29282, 32912, 34496, 36652, 37268, 41888, 42592, 45254, 47432, 53312, 54208, 57596, 58564, 65219, 65824, 68992, 73304, 74536, 83776, 85184, 90508, 94864, 100793, 102487, 106624, 108416, 115192, 117128, 130438, 131648, 146608, 149072, 158389, 167552, 170368, 181016, 189728, 201586, 204974, 230384, 234256, 248897, 260876, 263296, 293216, 298144, 316778, 362032, 379456, 403172, 409948, 460768, 468512, 497794, 521752, 586432, 596288, 633556, 717409, 724064, 758912, 806344, 819896, 921536, 937024, 995588, 1043504, 1108723, 1172864, 1192576, 1267112, 1434818, 1448128, 1612688, 1639792, 1742279, 1843072, 1874048, 1991176, 2087008, 2217446, 2534224, 2869636, 2896256, 3225376, 3279584, 3484558, 3982352, 4174016, 4434892, 5068448, 5739272, 6450752, 6559168, 6969116, 7964704, 8348032, 8869784, 10136896, 11478544, 12195953, 12901504, 13118336, 13938232, 15929408, 17739568, 20273792, 22957088, 24391906, 27876464, 31858816, 35479136, 45914176, 48783812, 55752928, 70958272, 91828352, 97567624, 111505856, 141916544, 195135248, 223011712, 390270496, 780540992, 1561081984]

約数ペア:

[(1, 1561081984), (2, 780540992), (4, 390270496), (7, 223011712), (8, 195135248), (11, 141916544), (14, 111505856), (16, 97567624), (17, 91828352), (22, 70958272), (28, 55752928), (32, 48783812), (34, 45914176), (44, 35479136), (49, 31858816), (56, 27876464), (64, 24391906), (68, 22957088), (77, 20273792), (88, 17739568), (98, 15929408), (112, 13938232), (119, 13118336), (121, 12901504), (128, 12195953), (136, 11478544), (154, 10136896), (176, 8869784), (187, 8348032), (196, 7964704), (224, 6969116), (238, 6559168), (242, 6450752), (272, 5739272), (308, 5068448), (352, 4434892), (374, 4174016), (392, 3982352), (448, 3484558), (476, 3279584), (484, 3225376), (539, 2896256), (544, 2869636), (616, 2534224), (704, 2217446), (748, 2087008), (784, 1991176), (833, 1874048), (847, 1843072), (896, 1742279), (952, 1639792), (968, 1612688), (1078, 1448128), (1088, 1434818), (1232, 1267112), (1309, 1192576), (1331, 1172864), (1408, 1108723), (1496, 1043504), (1568, 995588), (1666, 937024), (1694, 921536), (1904, 819896), (1936, 806344), (2057, 758912), (2156, 724064), (2176, 717409), (2464, 633556), (2618, 596288), (2662, 586432), (2992, 521752), (3136, 497794), (3332, 468512), (3388, 460768), (3808, 409948), (3872, 403172), (4114, 379456), (4312, 362032), (4928, 316778), (5236, 298144), (5324, 293216), (5929, 263296), (5984, 260876), (6272, 248897), (6664, 234256), (6776, 230384), (7616, 204974), (7744, 201586), (8228, 189728), (8624, 181016), (9163, 170368), (9317, 167552), (9856, 158389), (10472, 149072), (10648, 146608), (11858, 131648), (11968, 130438), (13328, 117128), (13552, 115192), (14399, 108416), (14641, 106624), (15232, 102487), (15488, 100793), (16456, 94864), (17248, 90508), (18326, 85184), (18634, 83776), (20944, 74536), (21296, 73304), (22627, 68992), (23716, 65824), (23936, 65219), (26656, 58564), (27104, 57596), (28798, 54208), (29282, 53312), (32912, 47432), (34496, 45254), (36652, 42592), (37268, 41888)]