208003840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 216

約数和(自身を含む): 587200320

約数和(自身を除く): 379196480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 79, 80, 85, 88, 110, 121, 128, 136, 158, 160, 170, 176, 187, 220, 242, 256, 272, 316, 320, 340, 352, 374, 395, 440, 484, 544, 605, 632, 640, 680, 704, 748, 790, 869, 880, 935, 968, 1088, 1210, 1264, 1280, 1343, 1360, 1408, 1496, 1580, 1738, 1760, 1870, 1936, 2057, 2176, 2420, 2528, 2686, 2720, 2816, 2992, 3160, 3476, 3520, 3740, 3872, 4114, 4345, 4352, 4840, 5056, 5372, 5440, 5984, 6320, 6715, 6952, 7040, 7480, 7744, 8228, 8690, 9559, 9680, 10112, 10285, 10744, 10880, 11968, 12640, 13430, 13904, 14080, 14773, 14960, 15488, 16456, 17380, 19118, 19360, 20224, 20570, 21488, 21760, 23936, 25280, 26860, 27808, 29546, 29920, 30976, 32912, 34760, 38236, 38720, 41140, 42976, 47795, 47872, 50560, 53720, 55616, 59092, 59840, 65824, 69520, 73865, 76472, 77440, 82280, 85952, 95590, 101120, 107440, 111232, 118184, 119680, 131648, 139040, 147730, 152944, 154880, 162503, 164560, 171904, 191180, 214880, 222464, 236368, 239360, 263296, 278080, 295460, 305888, 325006, 329120, 343808, 382360, 429760, 472736, 526592, 556160, 590920, 611776, 650012, 658240, 764720, 812515, 859520, 945472, 1112320, 1181840, 1223552, 1300024, 1316480, 1529440, 1625030, 1719040, 1890944, 2363680, 2447104, 2600048, 2632960, 3058880, 3250060, 3781888, 4727360, 5200096, 6117760, 6500120, 9454720, 10400192, 12235520, 13000240, 18909440, 20800384, 26000480, 41600768, 52000960, 104001920, 208003840]

約数ペア:

[(1, 208003840), (2, 104001920), (4, 52000960), (5, 41600768), (8, 26000480), (10, 20800384), (11, 18909440), (16, 13000240), (17, 12235520), (20, 10400192), (22, 9454720), (32, 6500120), (34, 6117760), (40, 5200096), (44, 4727360), (55, 3781888), (64, 3250060), (68, 3058880), (79, 2632960), (80, 2600048), (85, 2447104), (88, 2363680), (110, 1890944), (121, 1719040), (128, 1625030), (136, 1529440), (158, 1316480), (160, 1300024), (170, 1223552), (176, 1181840), (187, 1112320), (220, 945472), (242, 859520), (256, 812515), (272, 764720), (316, 658240), (320, 650012), (340, 611776), (352, 590920), (374, 556160), (395, 526592), (440, 472736), (484, 429760), (544, 382360), (605, 343808), (632, 329120), (640, 325006), (680, 305888), (704, 295460), (748, 278080), (790, 263296), (869, 239360), (880, 236368), (935, 222464), (968, 214880), (1088, 191180), (1210, 171904), (1264, 164560), (1280, 162503), (1343, 154880), (1360, 152944), (1408, 147730), (1496, 139040), (1580, 131648), (1738, 119680), (1760, 118184), (1870, 111232), (1936, 107440), (2057, 101120), (2176, 95590), (2420, 85952), (2528, 82280), (2686, 77440), (2720, 76472), (2816, 73865), (2992, 69520), (3160, 65824), (3476, 59840), (3520, 59092), (3740, 55616), (3872, 53720), (4114, 50560), (4345, 47872), (4352, 47795), (4840, 42976), (5056, 41140), (5372, 38720), (5440, 38236), (5984, 34760), (6320, 32912), (6715, 30976), (6952, 29920), (7040, 29546), (7480, 27808), (7744, 26860), (8228, 25280), (8690, 23936), (9559, 21760), (9680, 21488), (10112, 20570), (10285, 20224), (10744, 19360), (10880, 19118), (11968, 17380), (12640, 16456), (13430, 15488), (13904, 14960), (14080, 14773)]