20653557760

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 288

約数和(自身を含む): 55422057600

約数和(自身を除く): 34768499840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 79, 80, 88, 110, 121, 128, 158, 160, 176, 211, 220, 242, 256, 316, 320, 352, 395, 422, 440, 484, 512, 605, 632, 640, 704, 790, 844, 869, 880, 968, 1024, 1055, 1210, 1264, 1280, 1408, 1580, 1688, 1738, 1760, 1936, 2048, 2110, 2321, 2420, 2528, 2560, 2816, 3160, 3376, 3476, 3520, 3872, 4220, 4345, 4642, 4840, 5056, 5120, 5632, 6320, 6752, 6952, 7040, 7744, 8440, 8690, 9284, 9559, 9680, 10112, 10240, 11264, 11605, 12640, 13504, 13904, 14080, 15488, 16669, 16880, 17380, 18568, 19118, 19360, 20224, 22528, 23210, 25280, 25531, 27008, 27808, 28160, 30976, 33338, 33760, 34760, 37136, 38236, 38720, 40448, 46420, 47795, 50560, 51062, 54016, 55616, 56320, 61952, 66676, 67520, 69520, 74272, 76472, 77440, 80896, 83345, 92840, 95590, 101120, 102124, 108032, 111232, 112640, 123904, 127655, 133352, 135040, 139040, 148544, 152944, 154880, 161792, 166690, 183359, 185680, 191180, 202240, 204248, 216064, 222464, 247808, 255310, 266704, 270080, 278080, 297088, 305888, 309760, 333380, 366718, 371360, 382360, 404480, 408496, 432128, 444928, 510620, 533408, 540160, 556160, 594176, 611776, 619520, 666760, 733436, 742720, 764720, 808960, 816992, 889856, 916795, 1021240, 1066816, 1080320, 1112320, 1188352, 1223552, 1239040, 1333520, 1466872, 1485440, 1529440, 1633984, 1779712, 1833590, 2016949, 2042480, 2133632, 2160640, 2224640, 2376704, 2447104, 2667040, 2933744, 2970880, 3058880, 3267968, 3667180, 4033898, 4084960, 4267264, 4449280, 4753408, 4894208, 5334080, 5867488, 5941760, 6117760, 6535936, 7334360, 8067796, 8169920, 8534528, 8898560, 9788416, 10084745, 10668160, 11734976, 11883520, 12235520, 13071872, 14668720, 16135592, 16339840, 17069056, 19576832, 20169490, 21336320, 23469952, 23767040, 24471040, 26143744, 29337440, 32271184, 32679680, 34138112, 40338980, 42672640, 46939904, 48942080, 52287488, 58674880, 64542368, 65359360, 80677960, 85345280, 93879808, 97884160, 117349760, 129084736, 130718720, 161355920, 170690560, 187759616, 234699520, 258169472, 261437440, 322711840, 375519232, 469399040, 516338944, 645423680, 938798080, 1032677888, 1290847360, 1877596160, 2065355776, 2581694720, 4130711552, 5163389440, 10326778880, 20653557760]

約数ペア:

[(1, 20653557760), (2, 10326778880), (4, 5163389440), (5, 4130711552), (8, 2581694720), (10, 2065355776), (11, 1877596160), (16, 1290847360), (20, 1032677888), (22, 938798080), (32, 645423680), (40, 516338944), (44, 469399040), (55, 375519232), (64, 322711840), (79, 261437440), (80, 258169472), (88, 234699520), (110, 187759616), (121, 170690560), (128, 161355920), (158, 130718720), (160, 129084736), (176, 117349760), (211, 97884160), (220, 93879808), (242, 85345280), (256, 80677960), (316, 65359360), (320, 64542368), (352, 58674880), (395, 52287488), (422, 48942080), (440, 46939904), (484, 42672640), (512, 40338980), (605, 34138112), (632, 32679680), (640, 32271184), (704, 29337440), (790, 26143744), (844, 24471040), (869, 23767040), (880, 23469952), (968, 21336320), (1024, 20169490), (1055, 19576832), (1210, 17069056), (1264, 16339840), (1280, 16135592), (1408, 14668720), (1580, 13071872), (1688, 12235520), (1738, 11883520), (1760, 11734976), (1936, 10668160), (2048, 10084745), (2110, 9788416), (2321, 8898560), (2420, 8534528), (2528, 8169920), (2560, 8067796), (2816, 7334360), (3160, 6535936), (3376, 6117760), (3476, 5941760), (3520, 5867488), (3872, 5334080), (4220, 4894208), (4345, 4753408), (4642, 4449280), (4840, 4267264), (5056, 4084960), (5120, 4033898), (5632, 3667180), (6320, 3267968), (6752, 3058880), (6952, 2970880), (7040, 2933744), (7744, 2667040), (8440, 2447104), (8690, 2376704), (9284, 2224640), (9559, 2160640), (9680, 2133632), (10112, 2042480), (10240, 2016949), (11264, 1833590), (11605, 1779712), (12640, 1633984), (13504, 1529440), (13904, 1485440), (14080, 1466872), (15488, 1333520), (16669, 1239040), (16880, 1223552), (17380, 1188352), (18568, 1112320), (19118, 1080320), (19360, 1066816), (20224, 1021240), (22528, 916795), (23210, 889856), (25280, 816992), (25531, 808960), (27008, 764720), (27808, 742720), (28160, 733436), (30976, 666760), (33338, 619520), (33760, 611776), (34760, 594176), (37136, 556160), (38236, 540160), (38720, 533408), (40448, 510620), (46420, 444928), (47795, 432128), (50560, 408496), (51062, 404480), (54016, 382360), (55616, 371360), (56320, 366718), (61952, 333380), (66676, 309760), (67520, 305888), (69520, 297088), (74272, 278080), (76472, 270080), (77440, 266704), (80896, 255310), (83345, 247808), (92840, 222464), (95590, 216064), (101120, 204248), (102124, 202240), (108032, 191180), (111232, 185680), (112640, 183359), (123904, 166690), (127655, 161792), (133352, 154880), (135040, 152944), (139040, 148544)]