19720778880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19867}}^1$

素因数の和:19947

約数の個数: 256

約数和(自身を含む): 70037084160

約数和(自身を除く): 50316305280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 47, 48, 55, 60, 64, 66, 80, 88, 94, 96, 110, 120, 128, 132, 141, 160, 165, 176, 188, 192, 220, 235, 240, 264, 282, 320, 330, 352, 376, 384, 440, 470, 480, 517, 528, 564, 640, 660, 704, 705, 752, 880, 940, 960, 1034, 1056, 1128, 1320, 1408, 1410, 1504, 1551, 1760, 1880, 1920, 2068, 2112, 2256, 2585, 2640, 2820, 3008, 3102, 3520, 3760, 4136, 4224, 4512, 5170, 5280, 5640, 6016, 6204, 7040, 7520, 7755, 8272, 9024, 10340, 10560, 11280, 12408, 15040, 15510, 16544, 18048, 19867, 20680, 21120, 22560, 24816, 30080, 31020, 33088, 39734, 41360, 45120, 49632, 59601, 62040, 66176, 79468, 82720, 90240, 99264, 99335, 119202, 124080, 158936, 165440, 198528, 198670, 218537, 238404, 248160, 298005, 317872, 330880, 397340, 437074, 476808, 496320, 596010, 635744, 655611, 794680, 874148, 933749, 953616, 992640, 1092685, 1192020, 1271488, 1311222, 1589360, 1748296, 1867498, 1907232, 2185370, 2384040, 2542976, 2622444, 2801247, 3178720, 3278055, 3496592, 3734996, 3814464, 4370740, 4668745, 4768080, 5244888, 5602494, 6357440, 6556110, 6993184, 7469992, 7628928, 8741480, 9337490, 9536160, 10271239, 10489776, 11204988, 12714880, 13112220, 13986368, 14006235, 14939984, 17482960, 18674980, 19072320, 20542478, 20979552, 22409976, 26224440, 27972736, 28012470, 29879968, 30813717, 34965920, 37349960, 38144640, 41084956, 41959104, 44819952, 51356195, 52448880, 56024940, 59759936, 61627434, 69931840, 74699920, 82169912, 83918208, 89639904, 102712390, 104897760, 112049880, 119519872, 123254868, 139863680, 149399840, 154068585, 164339824, 179279808, 205424780, 209795520, 224099760, 246509736, 298799680, 308137170, 328679648, 358559616, 410849560, 419591040, 448199520, 493019472, 597599360, 616274340, 657359296, 821699120, 896399040, 986038944, 1232548680, 1314718592, 1643398240, 1792798080, 1972077888, 2465097360, 3286796480, 3944155776, 4930194720, 6573592960, 9860389440, 19720778880]

約数ペア:

[(1, 19720778880), (2, 9860389440), (3, 6573592960), (4, 4930194720), (5, 3944155776), (6, 3286796480), (8, 2465097360), (10, 1972077888), (11, 1792798080), (12, 1643398240), (15, 1314718592), (16, 1232548680), (20, 986038944), (22, 896399040), (24, 821699120), (30, 657359296), (32, 616274340), (33, 597599360), (40, 493019472), (44, 448199520), (47, 419591040), (48, 410849560), (55, 358559616), (60, 328679648), (64, 308137170), (66, 298799680), (80, 246509736), (88, 224099760), (94, 209795520), (96, 205424780), (110, 179279808), (120, 164339824), (128, 154068585), (132, 149399840), (141, 139863680), (160, 123254868), (165, 119519872), (176, 112049880), (188, 104897760), (192, 102712390), (220, 89639904), (235, 83918208), (240, 82169912), (264, 74699920), (282, 69931840), (320, 61627434), (330, 59759936), (352, 56024940), (376, 52448880), (384, 51356195), (440, 44819952), (470, 41959104), (480, 41084956), (517, 38144640), (528, 37349960), (564, 34965920), (640, 30813717), (660, 29879968), (704, 28012470), (705, 27972736), (752, 26224440), (880, 22409976), (940, 20979552), (960, 20542478), (1034, 19072320), (1056, 18674980), (1128, 17482960), (1320, 14939984), (1408, 14006235), (1410, 13986368), (1504, 13112220), (1551, 12714880), (1760, 11204988), (1880, 10489776), (1920, 10271239), (2068, 9536160), (2112, 9337490), (2256, 8741480), (2585, 7628928), (2640, 7469992), (2820, 6993184), (3008, 6556110), (3102, 6357440), (3520, 5602494), (3760, 5244888), (4136, 4768080), (4224, 4668745), (4512, 4370740), (5170, 3814464), (5280, 3734996), (5640, 3496592), (6016, 3278055), (6204, 3178720), (7040, 2801247), (7520, 2622444), (7755, 2542976), (8272, 2384040), (9024, 2185370), (10340, 1907232), (10560, 1867498), (11280, 1748296), (12408, 1589360), (15040, 1311222), (15510, 1271488), (16544, 1192020), (18048, 1092685), (19867, 992640), (20680, 953616), (21120, 933749), (22560, 874148), (24816, 794680), (30080, 655611), (31020, 635744), (33088, 596010), (39734, 496320), (41360, 476808), (45120, 437074), (49632, 397340), (59601, 330880), (62040, 317872), (66176, 298005), (79468, 248160), (82720, 238404), (90240, 218537), (99264, 198670), (99335, 198528), (119202, 165440), (124080, 158936)]