1290800000

素因数分解:

$2^7\times 5^5\times 7^1\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 192

約数和(自身を含む): 3681326880

約数和(自身を除く): 2390526880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 461, 500, 560, 625, 640, 700, 800, 875, 896, 922, 1000, 1120, 1250, 1400, 1600, 1750, 1844, 2000, 2240, 2305, 2500, 2800, 3125, 3200, 3227, 3500, 3688, 4000, 4375, 4480, 4610, 5000, 5600, 6250, 6454, 7000, 7376, 8000, 8750, 9220, 10000, 11200, 11525, 12500, 12908, 14000, 14752, 16000, 16135, 17500, 18440, 20000, 21875, 22400, 23050, 25000, 25816, 28000, 29504, 32270, 35000, 36880, 40000, 43750, 46100, 50000, 51632, 56000, 57625, 59008, 64540, 70000, 73760, 80000, 80675, 87500, 92200, 100000, 103264, 112000, 115250, 129080, 140000, 147520, 161350, 175000, 184400, 200000, 206528, 230500, 258160, 280000, 288125, 295040, 322700, 350000, 368800, 400000, 403375, 413056, 461000, 516320, 560000, 576250, 645400, 700000, 737600, 806750, 922000, 1032640, 1152500, 1290800, 1400000, 1440625, 1475200, 1613500, 1844000, 2016875, 2065280, 2305000, 2581600, 2800000, 2881250, 3227000, 3688000, 4033750, 4610000, 5163200, 5762500, 6454000, 7376000, 8067500, 9220000, 10084375, 10326400, 11525000, 12908000, 16135000, 18440000, 20168750, 23050000, 25816000, 32270000, 36880000, 40337500, 46100000, 51632000, 64540000, 80675000, 92200000, 129080000, 161350000, 184400000, 258160000, 322700000, 645400000, 1290800000]

約数ペア:

[(1, 1290800000), (2, 645400000), (4, 322700000), (5, 258160000), (7, 184400000), (8, 161350000), (10, 129080000), (14, 92200000), (16, 80675000), (20, 64540000), (25, 51632000), (28, 46100000), (32, 40337500), (35, 36880000), (40, 32270000), (50, 25816000), (56, 23050000), (64, 20168750), (70, 18440000), (80, 16135000), (100, 12908000), (112, 11525000), (125, 10326400), (128, 10084375), (140, 9220000), (160, 8067500), (175, 7376000), (200, 6454000), (224, 5762500), (250, 5163200), (280, 4610000), (320, 4033750), (350, 3688000), (400, 3227000), (448, 2881250), (461, 2800000), (500, 2581600), (560, 2305000), (625, 2065280), (640, 2016875), (700, 1844000), (800, 1613500), (875, 1475200), (896, 1440625), (922, 1400000), (1000, 1290800), (1120, 1152500), (1250, 1032640), (1400, 922000), (1600, 806750), (1750, 737600), (1844, 700000), (2000, 645400), (2240, 576250), (2305, 560000), (2500, 516320), (2800, 461000), (3125, 413056), (3200, 403375), (3227, 400000), (3500, 368800), (3688, 350000), (4000, 322700), (4375, 295040), (4480, 288125), (4610, 280000), (5000, 258160), (5600, 230500), (6250, 206528), (6454, 200000), (7000, 184400), (7376, 175000), (8000, 161350), (8750, 147520), (9220, 140000), (10000, 129080), (11200, 115250), (11525, 112000), (12500, 103264), (12908, 100000), (14000, 92200), (14752, 87500), (16000, 80675), (16135, 80000), (17500, 73760), (18440, 70000), (20000, 64540), (21875, 59008), (22400, 57625), (23050, 56000), (25000, 51632), (25816, 50000), (28000, 46100), (29504, 43750), (32270, 40000), (35000, 36880)]