7980000

素因数分解:

$2^5\times 3^1\times 5^4\times 7^1\times {\mathrm{19}}^1$

素因数の和:59

約数の個数: 240

約数和(自身を含む): 31489920

約数和(自身を除く): 23509920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 28, 30, 32, 35, 38, 40, 42, 48, 50, 56, 57, 60, 70, 75, 76, 80, 84, 95, 96, 100, 105, 112, 114, 120, 125, 133, 140, 150, 152, 160, 168, 175, 190, 200, 210, 224, 228, 240, 250, 266, 280, 285, 300, 304, 336, 350, 375, 380, 399, 400, 420, 456, 475, 480, 500, 525, 532, 560, 570, 600, 608, 625, 665, 672, 700, 750, 760, 798, 800, 840, 875, 912, 950, 1000, 1050, 1064, 1120, 1140, 1200, 1250, 1330, 1400, 1425, 1500, 1520, 1596, 1680, 1750, 1824, 1875, 1900, 1995, 2000, 2100, 2128, 2280, 2375, 2400, 2500, 2625, 2660, 2800, 2850, 3000, 3040, 3192, 3325, 3360, 3500, 3750, 3800, 3990, 4000, 4200, 4256, 4375, 4560, 4750, 5000, 5250, 5320, 5600, 5700, 6000, 6384, 6650, 7000, 7125, 7500, 7600, 7980, 8400, 8750, 9120, 9500, 9975, 10000, 10500, 10640, 11400, 11875, 12000, 12768, 13125, 13300, 14000, 14250, 15000, 15200, 15960, 16625, 16800, 17500, 19000, 19950, 20000, 21000, 21280, 22800, 23750, 26250, 26600, 28000, 28500, 30000, 31920, 33250, 35000, 35625, 38000, 39900, 42000, 45600, 47500, 49875, 52500, 53200, 57000, 60000, 63840, 66500, 70000, 71250, 76000, 79800, 83125, 84000, 95000, 99750, 105000, 106400, 114000, 133000, 140000, 142500, 159600, 166250, 190000, 199500, 210000, 228000, 249375, 266000, 285000, 319200, 332500, 380000, 399000, 420000, 498750, 532000, 570000, 665000, 798000, 997500, 1140000, 1330000, 1596000, 1995000, 2660000, 3990000, 7980000]

約数ペア:

[(1, 7980000), (2, 3990000), (3, 2660000), (4, 1995000), (5, 1596000), (6, 1330000), (7, 1140000), (8, 997500), (10, 798000), (12, 665000), (14, 570000), (15, 532000), (16, 498750), (19, 420000), (20, 399000), (21, 380000), (24, 332500), (25, 319200), (28, 285000), (30, 266000), (32, 249375), (35, 228000), (38, 210000), (40, 199500), (42, 190000), (48, 166250), (50, 159600), (56, 142500), (57, 140000), (60, 133000), (70, 114000), (75, 106400), (76, 105000), (80, 99750), (84, 95000), (95, 84000), (96, 83125), (100, 79800), (105, 76000), (112, 71250), (114, 70000), (120, 66500), (125, 63840), (133, 60000), (140, 57000), (150, 53200), (152, 52500), (160, 49875), (168, 47500), (175, 45600), (190, 42000), (200, 39900), (210, 38000), (224, 35625), (228, 35000), (240, 33250), (250, 31920), (266, 30000), (280, 28500), (285, 28000), (300, 26600), (304, 26250), (336, 23750), (350, 22800), (375, 21280), (380, 21000), (399, 20000), (400, 19950), (420, 19000), (456, 17500), (475, 16800), (480, 16625), (500, 15960), (525, 15200), (532, 15000), (560, 14250), (570, 14000), (600, 13300), (608, 13125), (625, 12768), (665, 12000), (672, 11875), (700, 11400), (750, 10640), (760, 10500), (798, 10000), (800, 9975), (840, 9500), (875, 9120), (912, 8750), (950, 8400), (1000, 7980), (1050, 7600), (1064, 7500), (1120, 7125), (1140, 7000), (1200, 6650), (1250, 6384), (1330, 6000), (1400, 5700), (1425, 5600), (1500, 5320), (1520, 5250), (1596, 5000), (1680, 4750), (1750, 4560), (1824, 4375), (1875, 4256), (1900, 4200), (1995, 4000), (2000, 3990), (2100, 3800), (2128, 3750), (2280, 3500), (2375, 3360), (2400, 3325), (2500, 3192), (2625, 3040), (2660, 3000), (2800, 2850)]