20545920

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:98

約数の個数: 256

約数和(自身を含む): 77112000

約数和(自身を除く): 56566080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 41, 45, 48, 54, 58, 60, 64, 72, 80, 82, 87, 90, 96, 108, 116, 120, 123, 128, 135, 144, 145, 160, 164, 174, 180, 192, 205, 216, 232, 240, 246, 261, 270, 288, 290, 320, 328, 348, 360, 369, 384, 410, 432, 435, 464, 480, 492, 522, 540, 576, 580, 615, 640, 656, 696, 720, 738, 783, 820, 864, 870, 928, 960, 984, 1044, 1080, 1107, 1152, 1160, 1189, 1230, 1305, 1312, 1392, 1440, 1476, 1566, 1640, 1728, 1740, 1845, 1856, 1920, 1968, 2088, 2160, 2214, 2320, 2378, 2460, 2610, 2624, 2784, 2880, 2952, 3132, 3280, 3456, 3480, 3567, 3690, 3712, 3915, 3936, 4176, 4320, 4428, 4640, 4756, 4920, 5220, 5248, 5535, 5568, 5760, 5904, 5945, 6264, 6560, 6960, 7134, 7380, 7830, 7872, 8352, 8640, 8856, 9280, 9512, 9840, 10440, 10701, 11070, 11136, 11808, 11890, 12528, 13120, 13920, 14268, 14760, 15660, 15744, 16704, 17280, 17712, 17835, 18560, 19024, 19680, 20880, 21402, 22140, 23616, 23780, 25056, 26240, 27840, 28536, 29520, 31320, 32103, 33408, 35424, 35670, 38048, 39360, 41760, 42804, 44280, 47232, 47560, 50112, 53505, 55680, 57072, 59040, 62640, 64206, 70848, 71340, 76096, 78720, 83520, 85608, 88560, 95120, 100224, 107010, 114144, 118080, 125280, 128412, 141696, 142680, 152192, 160515, 167040, 171216, 177120, 190240, 214020, 228288, 236160, 250560, 256824, 285360, 321030, 342432, 354240, 380480, 428040, 456576, 501120, 513648, 570720, 642060, 684864, 708480, 760960, 856080, 1027296, 1141440, 1284120, 1369728, 1712160, 2054592, 2282880, 2568240, 3424320, 4109184, 5136480, 6848640, 10272960, 20545920]

約数ペア:

[(1, 20545920), (2, 10272960), (3, 6848640), (4, 5136480), (5, 4109184), (6, 3424320), (8, 2568240), (9, 2282880), (10, 2054592), (12, 1712160), (15, 1369728), (16, 1284120), (18, 1141440), (20, 1027296), (24, 856080), (27, 760960), (29, 708480), (30, 684864), (32, 642060), (36, 570720), (40, 513648), (41, 501120), (45, 456576), (48, 428040), (54, 380480), (58, 354240), (60, 342432), (64, 321030), (72, 285360), (80, 256824), (82, 250560), (87, 236160), (90, 228288), (96, 214020), (108, 190240), (116, 177120), (120, 171216), (123, 167040), (128, 160515), (135, 152192), (144, 142680), (145, 141696), (160, 128412), (164, 125280), (174, 118080), (180, 114144), (192, 107010), (205, 100224), (216, 95120), (232, 88560), (240, 85608), (246, 83520), (261, 78720), (270, 76096), (288, 71340), (290, 70848), (320, 64206), (328, 62640), (348, 59040), (360, 57072), (369, 55680), (384, 53505), (410, 50112), (432, 47560), (435, 47232), (464, 44280), (480, 42804), (492, 41760), (522, 39360), (540, 38048), (576, 35670), (580, 35424), (615, 33408), (640, 32103), (656, 31320), (696, 29520), (720, 28536), (738, 27840), (783, 26240), (820, 25056), (864, 23780), (870, 23616), (928, 22140), (960, 21402), (984, 20880), (1044, 19680), (1080, 19024), (1107, 18560), (1152, 17835), (1160, 17712), (1189, 17280), (1230, 16704), (1305, 15744), (1312, 15660), (1392, 14760), (1440, 14268), (1476, 13920), (1566, 13120), (1640, 12528), (1728, 11890), (1740, 11808), (1845, 11136), (1856, 11070), (1920, 10701), (1968, 10440), (2088, 9840), (2160, 9512), (2214, 9280), (2320, 8856), (2378, 8640), (2460, 8352), (2610, 7872), (2624, 7830), (2784, 7380), (2880, 7134), (2952, 6960), (3132, 6560), (3280, 6264), (3456, 5945), (3480, 5904), (3567, 5760), (3690, 5568), (3712, 5535), (3915, 5248), (3936, 5220), (4176, 4920), (4320, 4756), (4428, 4640)]