20921794880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1451}}^1$

素因数の和:1673

約数の個数: 224

約数和(自身を含む): 58737837312

約数和(自身を除く): 37816042432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 140, 157, 160, 164, 205, 224, 280, 287, 314, 320, 328, 410, 448, 560, 574, 628, 656, 785, 820, 1099, 1120, 1148, 1256, 1312, 1435, 1451, 1570, 1640, 2198, 2240, 2296, 2512, 2624, 2870, 2902, 3140, 3280, 4396, 4592, 5024, 5495, 5740, 5804, 6280, 6437, 6560, 7255, 8792, 9184, 10048, 10157, 10990, 11480, 11608, 12560, 12874, 13120, 14510, 17584, 18368, 20314, 21980, 22960, 23216, 25120, 25748, 29020, 32185, 35168, 40628, 43960, 45059, 45920, 46432, 50240, 50785, 51496, 58040, 59491, 64370, 70336, 81256, 87920, 90118, 91840, 92864, 101570, 102992, 116080, 118982, 128740, 162512, 175840, 180236, 203140, 205984, 225295, 227807, 232160, 237964, 257480, 297455, 325024, 351680, 360472, 406280, 411968, 416437, 450590, 455614, 464320, 475928, 514960, 594910, 650048, 720944, 812560, 832874, 901180, 911228, 951856, 1029920, 1139035, 1189820, 1441888, 1594649, 1625120, 1665748, 1802360, 1822456, 1903712, 2059840, 2082185, 2278070, 2379640, 2883776, 3189298, 3250240, 3331496, 3604720, 3644912, 3807424, 4164370, 4556140, 4759280, 6378596, 6662992, 7209440, 7289824, 7973245, 8328740, 9112280, 9340087, 9518560, 12757192, 13325984, 14418880, 14579648, 15946490, 16657480, 18224560, 18680174, 19037120, 25514384, 26651968, 31892980, 33314960, 36449120, 37360348, 46700435, 51028768, 63785960, 65380609, 66629920, 72898240, 74720696, 93400870, 102057536, 127571920, 130761218, 133259840, 149441392, 186801740, 255143840, 261522436, 298882784, 326903045, 373603480, 510287680, 523044872, 597765568, 653806090, 747206960, 1046089744, 1307612180, 1494413920, 2092179488, 2615224360, 2988827840, 4184358976, 5230448720, 10460897440, 20921794880]

約数ペア:

[(1, 20921794880), (2, 10460897440), (4, 5230448720), (5, 4184358976), (7, 2988827840), (8, 2615224360), (10, 2092179488), (14, 1494413920), (16, 1307612180), (20, 1046089744), (28, 747206960), (32, 653806090), (35, 597765568), (40, 523044872), (41, 510287680), (56, 373603480), (64, 326903045), (70, 298882784), (80, 261522436), (82, 255143840), (112, 186801740), (140, 149441392), (157, 133259840), (160, 130761218), (164, 127571920), (205, 102057536), (224, 93400870), (280, 74720696), (287, 72898240), (314, 66629920), (320, 65380609), (328, 63785960), (410, 51028768), (448, 46700435), (560, 37360348), (574, 36449120), (628, 33314960), (656, 31892980), (785, 26651968), (820, 25514384), (1099, 19037120), (1120, 18680174), (1148, 18224560), (1256, 16657480), (1312, 15946490), (1435, 14579648), (1451, 14418880), (1570, 13325984), (1640, 12757192), (2198, 9518560), (2240, 9340087), (2296, 9112280), (2512, 8328740), (2624, 7973245), (2870, 7289824), (2902, 7209440), (3140, 6662992), (3280, 6378596), (4396, 4759280), (4592, 4556140), (5024, 4164370), (5495, 3807424), (5740, 3644912), (5804, 3604720), (6280, 3331496), (6437, 3250240), (6560, 3189298), (7255, 2883776), (8792, 2379640), (9184, 2278070), (10048, 2082185), (10157, 2059840), (10990, 1903712), (11480, 1822456), (11608, 1802360), (12560, 1665748), (12874, 1625120), (13120, 1594649), (14510, 1441888), (17584, 1189820), (18368, 1139035), (20314, 1029920), (21980, 951856), (22960, 911228), (23216, 901180), (25120, 832874), (25748, 812560), (29020, 720944), (32185, 650048), (35168, 594910), (40628, 514960), (43960, 475928), (45059, 464320), (45920, 455614), (46432, 450590), (50240, 416437), (50785, 411968), (51496, 406280), (58040, 360472), (59491, 351680), (64370, 325024), (70336, 297455), (81256, 257480), (87920, 237964), (90118, 232160), (91840, 227807), (92864, 225295), (101570, 205984), (102992, 203140), (116080, 180236), (118982, 175840), (128740, 162512)]