21840000

素因数分解:

$2^7\times 3^1\times 5^4\times 7^1\times {\mathrm{13}}^1$

素因数の和:57

約数の個数: 320

約数和(自身を含む): 89221440

約数和(自身を除く): 67381440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 25, 26, 28, 30, 32, 35, 39, 40, 42, 48, 50, 52, 56, 60, 64, 65, 70, 75, 78, 80, 84, 91, 96, 100, 104, 105, 112, 120, 125, 128, 130, 140, 150, 156, 160, 168, 175, 182, 192, 195, 200, 208, 210, 224, 240, 250, 260, 273, 280, 300, 312, 320, 325, 336, 350, 364, 375, 384, 390, 400, 416, 420, 448, 455, 480, 500, 520, 525, 546, 560, 600, 624, 625, 640, 650, 672, 700, 728, 750, 780, 800, 832, 840, 875, 896, 910, 960, 975, 1000, 1040, 1050, 1092, 1120, 1200, 1248, 1250, 1300, 1344, 1365, 1400, 1456, 1500, 1560, 1600, 1625, 1664, 1680, 1750, 1820, 1875, 1920, 1950, 2000, 2080, 2100, 2184, 2240, 2275, 2400, 2496, 2500, 2600, 2625, 2688, 2730, 2800, 2912, 3000, 3120, 3200, 3250, 3360, 3500, 3640, 3750, 3900, 4000, 4160, 4200, 4368, 4375, 4480, 4550, 4800, 4875, 4992, 5000, 5200, 5250, 5460, 5600, 5824, 6000, 6240, 6500, 6720, 6825, 7000, 7280, 7500, 7800, 8000, 8125, 8320, 8400, 8736, 8750, 9100, 9600, 9750, 10000, 10400, 10500, 10920, 11200, 11375, 11648, 12000, 12480, 13000, 13125, 13440, 13650, 14000, 14560, 15000, 15600, 16000, 16250, 16800, 17472, 17500, 18200, 19500, 20000, 20800, 21000, 21840, 22400, 22750, 24000, 24375, 24960, 26000, 26250, 27300, 28000, 29120, 30000, 31200, 32500, 33600, 34125, 34944, 35000, 36400, 39000, 40000, 41600, 42000, 43680, 45500, 48000, 48750, 52000, 52500, 54600, 56000, 56875, 58240, 60000, 62400, 65000, 67200, 68250, 70000, 72800, 78000, 80000, 84000, 87360, 91000, 97500, 104000, 105000, 109200, 112000, 113750, 120000, 124800, 130000, 136500, 140000, 145600, 156000, 168000, 170625, 174720, 182000, 195000, 208000, 210000, 218400, 227500, 240000, 260000, 273000, 280000, 291200, 312000, 336000, 341250, 364000, 390000, 420000, 436800, 455000, 520000, 546000, 560000, 624000, 682500, 728000, 780000, 840000, 873600, 910000, 1040000, 1092000, 1365000, 1456000, 1560000, 1680000, 1820000, 2184000, 2730000, 3120000, 3640000, 4368000, 5460000, 7280000, 10920000, 21840000]

約数ペア:

[(1, 21840000), (2, 10920000), (3, 7280000), (4, 5460000), (5, 4368000), (6, 3640000), (7, 3120000), (8, 2730000), (10, 2184000), (12, 1820000), (13, 1680000), (14, 1560000), (15, 1456000), (16, 1365000), (20, 1092000), (21, 1040000), (24, 910000), (25, 873600), (26, 840000), (28, 780000), (30, 728000), (32, 682500), (35, 624000), (39, 560000), (40, 546000), (42, 520000), (48, 455000), (50, 436800), (52, 420000), (56, 390000), (60, 364000), (64, 341250), (65, 336000), (70, 312000), (75, 291200), (78, 280000), (80, 273000), (84, 260000), (91, 240000), (96, 227500), (100, 218400), (104, 210000), (105, 208000), (112, 195000), (120, 182000), (125, 174720), (128, 170625), (130, 168000), (140, 156000), (150, 145600), (156, 140000), (160, 136500), (168, 130000), (175, 124800), (182, 120000), (192, 113750), (195, 112000), (200, 109200), (208, 105000), (210, 104000), (224, 97500), (240, 91000), (250, 87360), (260, 84000), (273, 80000), (280, 78000), (300, 72800), (312, 70000), (320, 68250), (325, 67200), (336, 65000), (350, 62400), (364, 60000), (375, 58240), (384, 56875), (390, 56000), (400, 54600), (416, 52500), (420, 52000), (448, 48750), (455, 48000), (480, 45500), (500, 43680), (520, 42000), (525, 41600), (546, 40000), (560, 39000), (600, 36400), (624, 35000), (625, 34944), (640, 34125), (650, 33600), (672, 32500), (700, 31200), (728, 30000), (750, 29120), (780, 28000), (800, 27300), (832, 26250), (840, 26000), (875, 24960), (896, 24375), (910, 24000), (960, 22750), (975, 22400), (1000, 21840), (1040, 21000), (1050, 20800), (1092, 20000), (1120, 19500), (1200, 18200), (1248, 17500), (1250, 17472), (1300, 16800), (1344, 16250), (1365, 16000), (1400, 15600), (1456, 15000), (1500, 14560), (1560, 14000), (1600, 13650), (1625, 13440), (1664, 13125), (1680, 13000), (1750, 12480), (1820, 12000), (1875, 11648), (1920, 11375), (1950, 11200), (2000, 10920), (2080, 10500), (2100, 10400), (2184, 10000), (2240, 9750), (2275, 9600), (2400, 9100), (2496, 8750), (2500, 8736), (2600, 8400), (2625, 8320), (2688, 8125), (2730, 8000), (2800, 7800), (2912, 7500), (3000, 7280), (3120, 7000), (3200, 6825), (3250, 6720), (3360, 6500), (3500, 6240), (3640, 6000), (3750, 5824), (3900, 5600), (4000, 5460), (4160, 5250), (4200, 5200), (4368, 5000), (4375, 4992), (4480, 4875), (4550, 4800)]