21420000

素因数分解:

$2^5\times 3^2\times 5^4\times 7^1\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 360

約数和(自身を含む): 92108016

約数和(自身を除く): 70688016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 25, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 50, 51, 56, 60, 63, 68, 70, 72, 75, 80, 84, 85, 90, 96, 100, 102, 105, 112, 119, 120, 125, 126, 136, 140, 144, 150, 153, 160, 168, 170, 175, 180, 200, 204, 210, 224, 225, 238, 240, 250, 252, 255, 272, 280, 288, 300, 306, 315, 336, 340, 350, 357, 360, 375, 400, 408, 420, 425, 450, 476, 480, 500, 504, 510, 525, 544, 560, 595, 600, 612, 625, 630, 672, 680, 700, 714, 720, 750, 765, 800, 816, 840, 850, 875, 900, 952, 1000, 1008, 1020, 1050, 1071, 1120, 1125, 1190, 1200, 1224, 1250, 1260, 1275, 1360, 1400, 1428, 1440, 1500, 1530, 1575, 1632, 1680, 1700, 1750, 1785, 1800, 1875, 1904, 2000, 2016, 2040, 2100, 2125, 2142, 2250, 2380, 2400, 2448, 2500, 2520, 2550, 2625, 2720, 2800, 2856, 2975, 3000, 3060, 3150, 3360, 3400, 3500, 3570, 3600, 3750, 3808, 3825, 4000, 4080, 4200, 4250, 4284, 4375, 4500, 4760, 4896, 5000, 5040, 5100, 5250, 5355, 5600, 5625, 5712, 5950, 6000, 6120, 6300, 6375, 6800, 7000, 7140, 7200, 7500, 7650, 7875, 8160, 8400, 8500, 8568, 8750, 8925, 9000, 9520, 10000, 10080, 10200, 10500, 10625, 10710, 11250, 11424, 11900, 12000, 12240, 12600, 12750, 13125, 13600, 14000, 14280, 14875, 15000, 15300, 15750, 16800, 17000, 17136, 17500, 17850, 18000, 19040, 19125, 20000, 20400, 21000, 21250, 21420, 22500, 23800, 24480, 25200, 25500, 26250, 26775, 28000, 28560, 29750, 30000, 30600, 31500, 31875, 34000, 34272, 35000, 35700, 36000, 38250, 39375, 40800, 42000, 42500, 42840, 44625, 45000, 47600, 50400, 51000, 52500, 53550, 57120, 59500, 60000, 61200, 63000, 63750, 68000, 70000, 71400, 74375, 76500, 78750, 84000, 85000, 85680, 89250, 90000, 95200, 95625, 102000, 105000, 107100, 119000, 122400, 126000, 127500, 133875, 140000, 142800, 148750, 153000, 157500, 170000, 171360, 178500, 180000, 191250, 204000, 210000, 214200, 223125, 238000, 252000, 255000, 267750, 285600, 297500, 306000, 315000, 340000, 357000, 382500, 420000, 428400, 446250, 476000, 510000, 535500, 595000, 612000, 630000, 669375, 714000, 765000, 856800, 892500, 1020000, 1071000, 1190000, 1260000, 1338750, 1428000, 1530000, 1785000, 2142000, 2380000, 2677500, 3060000, 3570000, 4284000, 5355000, 7140000, 10710000, 21420000]

約数ペア:

[(1, 21420000), (2, 10710000), (3, 7140000), (4, 5355000), (5, 4284000), (6, 3570000), (7, 3060000), (8, 2677500), (9, 2380000), (10, 2142000), (12, 1785000), (14, 1530000), (15, 1428000), (16, 1338750), (17, 1260000), (18, 1190000), (20, 1071000), (21, 1020000), (24, 892500), (25, 856800), (28, 765000), (30, 714000), (32, 669375), (34, 630000), (35, 612000), (36, 595000), (40, 535500), (42, 510000), (45, 476000), (48, 446250), (50, 428400), (51, 420000), (56, 382500), (60, 357000), (63, 340000), (68, 315000), (70, 306000), (72, 297500), (75, 285600), (80, 267750), (84, 255000), (85, 252000), (90, 238000), (96, 223125), (100, 214200), (102, 210000), (105, 204000), (112, 191250), (119, 180000), (120, 178500), (125, 171360), (126, 170000), (136, 157500), (140, 153000), (144, 148750), (150, 142800), (153, 140000), (160, 133875), (168, 127500), (170, 126000), (175, 122400), (180, 119000), (200, 107100), (204, 105000), (210, 102000), (224, 95625), (225, 95200), (238, 90000), (240, 89250), (250, 85680), (252, 85000), (255, 84000), (272, 78750), (280, 76500), (288, 74375), (300, 71400), (306, 70000), (315, 68000), (336, 63750), (340, 63000), (350, 61200), (357, 60000), (360, 59500), (375, 57120), (400, 53550), (408, 52500), (420, 51000), (425, 50400), (450, 47600), (476, 45000), (480, 44625), (500, 42840), (504, 42500), (510, 42000), (525, 40800), (544, 39375), (560, 38250), (595, 36000), (600, 35700), (612, 35000), (625, 34272), (630, 34000), (672, 31875), (680, 31500), (700, 30600), (714, 30000), (720, 29750), (750, 28560), (765, 28000), (800, 26775), (816, 26250), (840, 25500), (850, 25200), (875, 24480), (900, 23800), (952, 22500), (1000, 21420), (1008, 21250), (1020, 21000), (1050, 20400), (1071, 20000), (1120, 19125), (1125, 19040), (1190, 18000), (1200, 17850), (1224, 17500), (1250, 17136), (1260, 17000), (1275, 16800), (1360, 15750), (1400, 15300), (1428, 15000), (1440, 14875), (1500, 14280), (1530, 14000), (1575, 13600), (1632, 13125), (1680, 12750), (1700, 12600), (1750, 12240), (1785, 12000), (1800, 11900), (1875, 11424), (1904, 11250), (2000, 10710), (2016, 10625), (2040, 10500), (2100, 10200), (2125, 10080), (2142, 10000), (2250, 9520), (2380, 9000), (2400, 8925), (2448, 8750), (2500, 8568), (2520, 8500), (2550, 8400), (2625, 8160), (2720, 7875), (2800, 7650), (2856, 7500), (2975, 7200), (3000, 7140), (3060, 7000), (3150, 6800), (3360, 6375), (3400, 6300), (3500, 6120), (3570, 6000), (3600, 5950), (3750, 5712), (3808, 5625), (3825, 5600), (4000, 5355), (4080, 5250), (4200, 5100), (4250, 5040), (4284, 5000), (4375, 4896), (4500, 4760)]