28981440

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:399

約数の個数: 168

約数和(自身を含む): 103418640

約数和(自身を除く): 74437200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 64, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 192, 232, 240, 261, 288, 290, 320, 347, 348, 360, 435, 464, 480, 522, 576, 580, 694, 696, 720, 870, 928, 960, 1041, 1044, 1160, 1305, 1388, 1392, 1440, 1735, 1740, 1856, 2082, 2088, 2320, 2610, 2776, 2784, 2880, 3123, 3470, 3480, 4164, 4176, 4640, 5205, 5220, 5552, 5568, 6246, 6940, 6960, 8328, 8352, 9280, 10063, 10410, 10440, 11104, 12492, 13880, 13920, 15615, 16656, 16704, 20126, 20820, 20880, 22208, 24984, 27760, 27840, 30189, 31230, 33312, 40252, 41640, 41760, 49968, 50315, 55520, 60378, 62460, 66624, 80504, 83280, 83520, 90567, 99936, 100630, 111040, 120756, 124920, 150945, 161008, 166560, 181134, 199872, 201260, 241512, 249840, 301890, 322016, 333120, 362268, 402520, 452835, 483024, 499680, 603780, 644032, 724536, 805040, 905670, 966048, 999360, 1207560, 1449072, 1610080, 1811340, 1932096, 2415120, 2898144, 3220160, 3622680, 4830240, 5796288, 7245360, 9660480, 14490720, 28981440]

約数ペア:

[(1, 28981440), (2, 14490720), (3, 9660480), (4, 7245360), (5, 5796288), (6, 4830240), (8, 3622680), (9, 3220160), (10, 2898144), (12, 2415120), (15, 1932096), (16, 1811340), (18, 1610080), (20, 1449072), (24, 1207560), (29, 999360), (30, 966048), (32, 905670), (36, 805040), (40, 724536), (45, 644032), (48, 603780), (58, 499680), (60, 483024), (64, 452835), (72, 402520), (80, 362268), (87, 333120), (90, 322016), (96, 301890), (116, 249840), (120, 241512), (144, 201260), (145, 199872), (160, 181134), (174, 166560), (180, 161008), (192, 150945), (232, 124920), (240, 120756), (261, 111040), (288, 100630), (290, 99936), (320, 90567), (347, 83520), (348, 83280), (360, 80504), (435, 66624), (464, 62460), (480, 60378), (522, 55520), (576, 50315), (580, 49968), (694, 41760), (696, 41640), (720, 40252), (870, 33312), (928, 31230), (960, 30189), (1041, 27840), (1044, 27760), (1160, 24984), (1305, 22208), (1388, 20880), (1392, 20820), (1440, 20126), (1735, 16704), (1740, 16656), (1856, 15615), (2082, 13920), (2088, 13880), (2320, 12492), (2610, 11104), (2776, 10440), (2784, 10410), (2880, 10063), (3123, 9280), (3470, 8352), (3480, 8328), (4164, 6960), (4176, 6940), (4640, 6246), (5205, 5568), (5220, 5552)]