7875000

素因数分解:

$2^3\times 3^2\times 5^6\times 7^1$

素因数の和:49

約数の個数: 168

約数和(自身を含む): 30468360

約数和(自身を除く): 22593360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 125, 126, 140, 150, 168, 175, 180, 200, 210, 225, 250, 252, 280, 300, 315, 350, 360, 375, 420, 450, 500, 504, 525, 600, 625, 630, 700, 750, 840, 875, 900, 1000, 1050, 1125, 1250, 1260, 1400, 1500, 1575, 1750, 1800, 1875, 2100, 2250, 2500, 2520, 2625, 3000, 3125, 3150, 3500, 3750, 4200, 4375, 4500, 5000, 5250, 5625, 6250, 6300, 7000, 7500, 7875, 8750, 9000, 9375, 10500, 11250, 12500, 12600, 13125, 15000, 15625, 15750, 17500, 18750, 21000, 21875, 22500, 25000, 26250, 28125, 31250, 31500, 35000, 37500, 39375, 43750, 45000, 46875, 52500, 56250, 62500, 63000, 65625, 75000, 78750, 87500, 93750, 105000, 109375, 112500, 125000, 131250, 140625, 157500, 175000, 187500, 196875, 218750, 225000, 262500, 281250, 315000, 328125, 375000, 393750, 437500, 525000, 562500, 656250, 787500, 875000, 984375, 1125000, 1312500, 1575000, 1968750, 2625000, 3937500, 7875000]

約数ペア:

[(1, 7875000), (2, 3937500), (3, 2625000), (4, 1968750), (5, 1575000), (6, 1312500), (7, 1125000), (8, 984375), (9, 875000), (10, 787500), (12, 656250), (14, 562500), (15, 525000), (18, 437500), (20, 393750), (21, 375000), (24, 328125), (25, 315000), (28, 281250), (30, 262500), (35, 225000), (36, 218750), (40, 196875), (42, 187500), (45, 175000), (50, 157500), (56, 140625), (60, 131250), (63, 125000), (70, 112500), (72, 109375), (75, 105000), (84, 93750), (90, 87500), (100, 78750), (105, 75000), (120, 65625), (125, 63000), (126, 62500), (140, 56250), (150, 52500), (168, 46875), (175, 45000), (180, 43750), (200, 39375), (210, 37500), (225, 35000), (250, 31500), (252, 31250), (280, 28125), (300, 26250), (315, 25000), (350, 22500), (360, 21875), (375, 21000), (420, 18750), (450, 17500), (500, 15750), (504, 15625), (525, 15000), (600, 13125), (625, 12600), (630, 12500), (700, 11250), (750, 10500), (840, 9375), (875, 9000), (900, 8750), (1000, 7875), (1050, 7500), (1125, 7000), (1250, 6300), (1260, 6250), (1400, 5625), (1500, 5250), (1575, 5000), (1750, 4500), (1800, 4375), (1875, 4200), (2100, 3750), (2250, 3500), (2500, 3150), (2520, 3125), (2625, 3000)]