256875000

素因数分解:

$2^3\times 3^1\times 5^7\times {\mathrm{137}}^1$

素因数の和:181

約数の個数: 128

約数和(自身を含む): 808591680

約数和(自身を除く): 551716680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 137, 150, 200, 250, 274, 300, 375, 411, 500, 548, 600, 625, 685, 750, 822, 1000, 1096, 1250, 1370, 1500, 1644, 1875, 2055, 2500, 2740, 3000, 3125, 3288, 3425, 3750, 4110, 5000, 5480, 6250, 6850, 7500, 8220, 9375, 10275, 12500, 13700, 15000, 15625, 16440, 17125, 18750, 20550, 25000, 27400, 31250, 34250, 37500, 41100, 46875, 51375, 62500, 68500, 75000, 78125, 82200, 85625, 93750, 102750, 125000, 137000, 156250, 171250, 187500, 205500, 234375, 256875, 312500, 342500, 375000, 411000, 428125, 468750, 513750, 625000, 685000, 856250, 937500, 1027500, 1284375, 1712500, 1875000, 2055000, 2140625, 2568750, 3425000, 4281250, 5137500, 6421875, 8562500, 10275000, 10703125, 12843750, 17125000, 21406250, 25687500, 32109375, 42812500, 51375000, 64218750, 85625000, 128437500, 256875000]

約数ペア:

[(1, 256875000), (2, 128437500), (3, 85625000), (4, 64218750), (5, 51375000), (6, 42812500), (8, 32109375), (10, 25687500), (12, 21406250), (15, 17125000), (20, 12843750), (24, 10703125), (25, 10275000), (30, 8562500), (40, 6421875), (50, 5137500), (60, 4281250), (75, 3425000), (100, 2568750), (120, 2140625), (125, 2055000), (137, 1875000), (150, 1712500), (200, 1284375), (250, 1027500), (274, 937500), (300, 856250), (375, 685000), (411, 625000), (500, 513750), (548, 468750), (600, 428125), (625, 411000), (685, 375000), (750, 342500), (822, 312500), (1000, 256875), (1096, 234375), (1250, 205500), (1370, 187500), (1500, 171250), (1644, 156250), (1875, 137000), (2055, 125000), (2500, 102750), (2740, 93750), (3000, 85625), (3125, 82200), (3288, 78125), (3425, 75000), (3750, 68500), (4110, 62500), (5000, 51375), (5480, 46875), (6250, 41100), (6850, 37500), (7500, 34250), (8220, 31250), (9375, 27400), (10275, 25000), (12500, 20550), (13700, 18750), (15000, 17125), (15625, 16440)]