28985040

素因数分解:

$2^4\times 3^6\times 5^1\times 7^1\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 280

約数和(自身を含む): 117099648

約数和(自身を除く): 88114608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 71, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 142, 144, 162, 168, 180, 189, 210, 213, 216, 240, 243, 252, 270, 280, 284, 315, 324, 336, 355, 360, 378, 405, 420, 426, 432, 486, 497, 504, 540, 560, 567, 568, 630, 639, 648, 710, 720, 729, 756, 810, 840, 852, 945, 972, 994, 1008, 1065, 1080, 1134, 1136, 1215, 1260, 1278, 1296, 1420, 1458, 1491, 1512, 1620, 1680, 1701, 1704, 1890, 1917, 1944, 1988, 2130, 2160, 2268, 2430, 2485, 2520, 2556, 2835, 2840, 2916, 2982, 3024, 3195, 3240, 3402, 3408, 3645, 3780, 3834, 3888, 3976, 4260, 4473, 4536, 4860, 4970, 5040, 5103, 5112, 5670, 5680, 5751, 5832, 5964, 6390, 6480, 6804, 7290, 7455, 7560, 7668, 7952, 8505, 8520, 8946, 9072, 9585, 9720, 9940, 10206, 10224, 11340, 11502, 11664, 11928, 12780, 13419, 13608, 14580, 14910, 15120, 15336, 17010, 17040, 17253, 17892, 19170, 19440, 19880, 20412, 22365, 22680, 23004, 23856, 25515, 25560, 26838, 27216, 28755, 29160, 29820, 30672, 34020, 34506, 35784, 38340, 39760, 40257, 40824, 44730, 45360, 46008, 51030, 51120, 51759, 53676, 57510, 58320, 59640, 67095, 68040, 69012, 71568, 76680, 80514, 81648, 86265, 89460, 92016, 102060, 103518, 107352, 115020, 119280, 120771, 134190, 136080, 138024, 153360, 161028, 172530, 178920, 201285, 204120, 207036, 214704, 230040, 241542, 258795, 268380, 276048, 322056, 345060, 357840, 362313, 402570, 408240, 414072, 460080, 483084, 517590, 536760, 603855, 644112, 690120, 724626, 805140, 828144, 966168, 1035180, 1073520, 1207710, 1380240, 1449252, 1610280, 1811565, 1932336, 2070360, 2415420, 2898504, 3220560, 3623130, 4140720, 4830840, 5797008, 7246260, 9661680, 14492520, 28985040]

約数ペア:

[(1, 28985040), (2, 14492520), (3, 9661680), (4, 7246260), (5, 5797008), (6, 4830840), (7, 4140720), (8, 3623130), (9, 3220560), (10, 2898504), (12, 2415420), (14, 2070360), (15, 1932336), (16, 1811565), (18, 1610280), (20, 1449252), (21, 1380240), (24, 1207710), (27, 1073520), (28, 1035180), (30, 966168), (35, 828144), (36, 805140), (40, 724626), (42, 690120), (45, 644112), (48, 603855), (54, 536760), (56, 517590), (60, 483084), (63, 460080), (70, 414072), (71, 408240), (72, 402570), (80, 362313), (81, 357840), (84, 345060), (90, 322056), (105, 276048), (108, 268380), (112, 258795), (120, 241542), (126, 230040), (135, 214704), (140, 207036), (142, 204120), (144, 201285), (162, 178920), (168, 172530), (180, 161028), (189, 153360), (210, 138024), (213, 136080), (216, 134190), (240, 120771), (243, 119280), (252, 115020), (270, 107352), (280, 103518), (284, 102060), (315, 92016), (324, 89460), (336, 86265), (355, 81648), (360, 80514), (378, 76680), (405, 71568), (420, 69012), (426, 68040), (432, 67095), (486, 59640), (497, 58320), (504, 57510), (540, 53676), (560, 51759), (567, 51120), (568, 51030), (630, 46008), (639, 45360), (648, 44730), (710, 40824), (720, 40257), (729, 39760), (756, 38340), (810, 35784), (840, 34506), (852, 34020), (945, 30672), (972, 29820), (994, 29160), (1008, 28755), (1065, 27216), (1080, 26838), (1134, 25560), (1136, 25515), (1215, 23856), (1260, 23004), (1278, 22680), (1296, 22365), (1420, 20412), (1458, 19880), (1491, 19440), (1512, 19170), (1620, 17892), (1680, 17253), (1701, 17040), (1704, 17010), (1890, 15336), (1917, 15120), (1944, 14910), (1988, 14580), (2130, 13608), (2160, 13419), (2268, 12780), (2430, 11928), (2485, 11664), (2520, 11502), (2556, 11340), (2835, 10224), (2840, 10206), (2916, 9940), (2982, 9720), (3024, 9585), (3195, 9072), (3240, 8946), (3402, 8520), (3408, 8505), (3645, 7952), (3780, 7668), (3834, 7560), (3888, 7455), (3976, 7290), (4260, 6804), (4473, 6480), (4536, 6390), (4860, 5964), (4970, 5832), (5040, 5751), (5103, 5680), (5112, 5670)]