20522880

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{509}}^1$

素因数の和:541

約数の個数: 192

約数和(自身を含む): 81151200

約数和(自身を除く): 60628320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 509, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1018, 1120, 1152, 1260, 1344, 1440, 1527, 1680, 1920, 2016, 2036, 2240, 2520, 2545, 2688, 2880, 3054, 3360, 3563, 4032, 4072, 4480, 4581, 5040, 5090, 5760, 6108, 6720, 7126, 7635, 8064, 8144, 9162, 10080, 10180, 10689, 12216, 13440, 14252, 15270, 16288, 17815, 18324, 20160, 20360, 21378, 22905, 24432, 28504, 30540, 32067, 32576, 35630, 36648, 40320, 40720, 42756, 45810, 48864, 53445, 57008, 61080, 64134, 65152, 71260, 73296, 81440, 85512, 91620, 97728, 106890, 114016, 122160, 128268, 142520, 146592, 160335, 162880, 171024, 183240, 195456, 213780, 228032, 244320, 256536, 285040, 293184, 320670, 325760, 342048, 366480, 427560, 456064, 488640, 513072, 570080, 586368, 641340, 684096, 732960, 855120, 977280, 1026144, 1140160, 1282680, 1368192, 1465920, 1710240, 2052288, 2280320, 2565360, 2931840, 3420480, 4104576, 5130720, 6840960, 10261440, 20522880]

約数ペア:

[(1, 20522880), (2, 10261440), (3, 6840960), (4, 5130720), (5, 4104576), (6, 3420480), (7, 2931840), (8, 2565360), (9, 2280320), (10, 2052288), (12, 1710240), (14, 1465920), (15, 1368192), (16, 1282680), (18, 1140160), (20, 1026144), (21, 977280), (24, 855120), (28, 732960), (30, 684096), (32, 641340), (35, 586368), (36, 570080), (40, 513072), (42, 488640), (45, 456064), (48, 427560), (56, 366480), (60, 342048), (63, 325760), (64, 320670), (70, 293184), (72, 285040), (80, 256536), (84, 244320), (90, 228032), (96, 213780), (105, 195456), (112, 183240), (120, 171024), (126, 162880), (128, 160335), (140, 146592), (144, 142520), (160, 128268), (168, 122160), (180, 114016), (192, 106890), (210, 97728), (224, 91620), (240, 85512), (252, 81440), (280, 73296), (288, 71260), (315, 65152), (320, 64134), (336, 61080), (360, 57008), (384, 53445), (420, 48864), (448, 45810), (480, 42756), (504, 40720), (509, 40320), (560, 36648), (576, 35630), (630, 32576), (640, 32067), (672, 30540), (720, 28504), (840, 24432), (896, 22905), (960, 21378), (1008, 20360), (1018, 20160), (1120, 18324), (1152, 17815), (1260, 16288), (1344, 15270), (1440, 14252), (1527, 13440), (1680, 12216), (1920, 10689), (2016, 10180), (2036, 10080), (2240, 9162), (2520, 8144), (2545, 8064), (2688, 7635), (2880, 7126), (3054, 6720), (3360, 6108), (3563, 5760), (4032, 5090), (4072, 5040), (4480, 4581)]