1279858560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21503}}^1$

素因数の和:21556

約数の個数: 128

約数和(自身を含む): 4211343360

約数和(自身を除く): 2931484800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4960, 5952, 7440, 9920, 11904, 14880, 19840, 21503, 29760, 43006, 59520, 64509, 86012, 107515, 129018, 172024, 215030, 258036, 322545, 344048, 430060, 516072, 645090, 666593, 688096, 860120, 1032144, 1290180, 1333186, 1376192, 1720240, 1999779, 2064288, 2580360, 2666372, 2752384, 3332965, 3440480, 3999558, 4128576, 5160720, 5332744, 6665930, 6880960, 7999116, 8257152, 9998895, 10321440, 10665488, 13331860, 13761920, 15998232, 19997790, 20642880, 21330976, 26663720, 31996464, 39995580, 41285760, 42661952, 53327440, 63992928, 79991160, 85323904, 106654880, 127985856, 159982320, 213309760, 255971712, 319964640, 426619520, 639929280, 1279858560]

約数ペア:

[(1, 1279858560), (2, 639929280), (3, 426619520), (4, 319964640), (5, 255971712), (6, 213309760), (8, 159982320), (10, 127985856), (12, 106654880), (15, 85323904), (16, 79991160), (20, 63992928), (24, 53327440), (30, 42661952), (31, 41285760), (32, 39995580), (40, 31996464), (48, 26663720), (60, 21330976), (62, 20642880), (64, 19997790), (80, 15998232), (93, 13761920), (96, 13331860), (120, 10665488), (124, 10321440), (128, 9998895), (155, 8257152), (160, 7999116), (186, 6880960), (192, 6665930), (240, 5332744), (248, 5160720), (310, 4128576), (320, 3999558), (372, 3440480), (384, 3332965), (465, 2752384), (480, 2666372), (496, 2580360), (620, 2064288), (640, 1999779), (744, 1720240), (930, 1376192), (960, 1333186), (992, 1290180), (1240, 1032144), (1488, 860120), (1860, 688096), (1920, 666593), (1984, 645090), (2480, 516072), (2976, 430060), (3720, 344048), (3968, 322545), (4960, 258036), (5952, 215030), (7440, 172024), (9920, 129018), (11904, 107515), (14880, 86012), (19840, 64509), (21503, 59520), (29760, 43006)]