20126400

素因数分解:

$2^6\times 3^1\times 5^2\times 7^1\times {\mathrm{599}}^1$

素因数の和:631

約数の個数: 168

約数和(自身を含む): 75590400

約数和(自身を除く): 55464000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 192, 200, 210, 224, 240, 280, 300, 320, 336, 350, 400, 420, 448, 480, 525, 560, 599, 600, 672, 700, 800, 840, 960, 1050, 1120, 1198, 1200, 1344, 1400, 1600, 1680, 1797, 2100, 2240, 2396, 2400, 2800, 2995, 3360, 3594, 4193, 4200, 4792, 4800, 5600, 5990, 6720, 7188, 8386, 8400, 8985, 9584, 11200, 11980, 12579, 14376, 14975, 16772, 16800, 17970, 19168, 20965, 23960, 25158, 28752, 29950, 33544, 33600, 35940, 38336, 41930, 44925, 47920, 50316, 57504, 59900, 62895, 67088, 71880, 83860, 89850, 95840, 100632, 104825, 115008, 119800, 125790, 134176, 143760, 167720, 179700, 191680, 201264, 209650, 239600, 251580, 268352, 287520, 314475, 335440, 359400, 402528, 419300, 479200, 503160, 575040, 628950, 670880, 718800, 805056, 838600, 958400, 1006320, 1257900, 1341760, 1437600, 1677200, 2012640, 2515800, 2875200, 3354400, 4025280, 5031600, 6708800, 10063200, 20126400]

約数ペア:

[(1, 20126400), (2, 10063200), (3, 6708800), (4, 5031600), (5, 4025280), (6, 3354400), (7, 2875200), (8, 2515800), (10, 2012640), (12, 1677200), (14, 1437600), (15, 1341760), (16, 1257900), (20, 1006320), (21, 958400), (24, 838600), (25, 805056), (28, 718800), (30, 670880), (32, 628950), (35, 575040), (40, 503160), (42, 479200), (48, 419300), (50, 402528), (56, 359400), (60, 335440), (64, 314475), (70, 287520), (75, 268352), (80, 251580), (84, 239600), (96, 209650), (100, 201264), (105, 191680), (112, 179700), (120, 167720), (140, 143760), (150, 134176), (160, 125790), (168, 119800), (175, 115008), (192, 104825), (200, 100632), (210, 95840), (224, 89850), (240, 83860), (280, 71880), (300, 67088), (320, 62895), (336, 59900), (350, 57504), (400, 50316), (420, 47920), (448, 44925), (480, 41930), (525, 38336), (560, 35940), (599, 33600), (600, 33544), (672, 29950), (700, 28752), (800, 25158), (840, 23960), (960, 20965), (1050, 19168), (1120, 17970), (1198, 16800), (1200, 16772), (1344, 14975), (1400, 14376), (1600, 12579), (1680, 11980), (1797, 11200), (2100, 9584), (2240, 8985), (2396, 8400), (2400, 8386), (2800, 7188), (2995, 6720), (3360, 5990), (3594, 5600), (4193, 4800), (4200, 4792)]