20874000

素因数分解:

$2^4\times 3^1\times 5^3\times 7^2\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 240

約数和(自身を含む): 79387776

約数和(自身を除く): 58513776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 71, 75, 80, 84, 98, 100, 105, 112, 120, 125, 140, 142, 147, 150, 168, 175, 196, 200, 210, 213, 240, 245, 250, 280, 284, 294, 300, 336, 350, 355, 375, 392, 400, 420, 426, 490, 497, 500, 525, 560, 568, 588, 600, 700, 710, 735, 750, 784, 840, 852, 875, 980, 994, 1000, 1050, 1065, 1136, 1176, 1200, 1225, 1400, 1420, 1470, 1491, 1500, 1680, 1704, 1750, 1775, 1960, 1988, 2000, 2100, 2130, 2352, 2450, 2485, 2625, 2800, 2840, 2940, 2982, 3000, 3408, 3479, 3500, 3550, 3675, 3920, 3976, 4200, 4260, 4900, 4970, 5250, 5325, 5680, 5880, 5964, 6000, 6125, 6958, 7000, 7100, 7350, 7455, 7952, 8400, 8520, 8875, 9800, 9940, 10437, 10500, 10650, 11760, 11928, 12250, 12425, 13916, 14000, 14200, 14700, 14910, 17040, 17395, 17750, 18375, 19600, 19880, 20874, 21000, 21300, 23856, 24500, 24850, 26625, 27832, 28400, 29400, 29820, 34790, 35500, 36750, 37275, 39760, 41748, 42000, 42600, 49000, 49700, 52185, 53250, 55664, 58800, 59640, 62125, 69580, 71000, 73500, 74550, 83496, 85200, 86975, 98000, 99400, 104370, 106500, 119280, 124250, 139160, 142000, 147000, 149100, 166992, 173950, 186375, 198800, 208740, 213000, 248500, 260925, 278320, 294000, 298200, 347900, 372750, 417480, 426000, 434875, 497000, 521850, 596400, 695800, 745500, 834960, 869750, 994000, 1043700, 1304625, 1391600, 1491000, 1739500, 2087400, 2609250, 2982000, 3479000, 4174800, 5218500, 6958000, 10437000, 20874000]

約数ペア:

[(1, 20874000), (2, 10437000), (3, 6958000), (4, 5218500), (5, 4174800), (6, 3479000), (7, 2982000), (8, 2609250), (10, 2087400), (12, 1739500), (14, 1491000), (15, 1391600), (16, 1304625), (20, 1043700), (21, 994000), (24, 869750), (25, 834960), (28, 745500), (30, 695800), (35, 596400), (40, 521850), (42, 497000), (48, 434875), (49, 426000), (50, 417480), (56, 372750), (60, 347900), (70, 298200), (71, 294000), (75, 278320), (80, 260925), (84, 248500), (98, 213000), (100, 208740), (105, 198800), (112, 186375), (120, 173950), (125, 166992), (140, 149100), (142, 147000), (147, 142000), (150, 139160), (168, 124250), (175, 119280), (196, 106500), (200, 104370), (210, 99400), (213, 98000), (240, 86975), (245, 85200), (250, 83496), (280, 74550), (284, 73500), (294, 71000), (300, 69580), (336, 62125), (350, 59640), (355, 58800), (375, 55664), (392, 53250), (400, 52185), (420, 49700), (426, 49000), (490, 42600), (497, 42000), (500, 41748), (525, 39760), (560, 37275), (568, 36750), (588, 35500), (600, 34790), (700, 29820), (710, 29400), (735, 28400), (750, 27832), (784, 26625), (840, 24850), (852, 24500), (875, 23856), (980, 21300), (994, 21000), (1000, 20874), (1050, 19880), (1065, 19600), (1136, 18375), (1176, 17750), (1200, 17395), (1225, 17040), (1400, 14910), (1420, 14700), (1470, 14200), (1491, 14000), (1500, 13916), (1680, 12425), (1704, 12250), (1750, 11928), (1775, 11760), (1960, 10650), (1988, 10500), (2000, 10437), (2100, 9940), (2130, 9800), (2352, 8875), (2450, 8520), (2485, 8400), (2625, 7952), (2800, 7455), (2840, 7350), (2940, 7100), (2982, 7000), (3000, 6958), (3408, 6125), (3479, 6000), (3500, 5964), (3550, 5880), (3675, 5680), (3920, 5325), (3976, 5250), (4200, 4970), (4260, 4900)]