217000000

素因数分解:

$2^6\times 5^6\times 7^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 196

約数和(自身を含む): 634991872

約数和(自身を除く): 417991872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 64, 70, 80, 100, 112, 124, 125, 140, 155, 160, 175, 200, 217, 224, 248, 250, 280, 310, 320, 350, 400, 434, 448, 496, 500, 560, 620, 625, 700, 775, 800, 868, 875, 992, 1000, 1085, 1120, 1240, 1250, 1400, 1550, 1600, 1736, 1750, 1984, 2000, 2170, 2240, 2480, 2500, 2800, 3100, 3125, 3472, 3500, 3875, 4000, 4340, 4375, 4960, 5000, 5425, 5600, 6200, 6250, 6944, 7000, 7750, 8000, 8680, 8750, 9920, 10000, 10850, 11200, 12400, 12500, 13888, 14000, 15500, 15625, 17360, 17500, 19375, 20000, 21700, 21875, 24800, 25000, 27125, 28000, 31000, 31250, 34720, 35000, 38750, 40000, 43400, 43750, 49600, 50000, 54250, 56000, 62000, 62500, 69440, 70000, 77500, 86800, 87500, 96875, 100000, 108500, 109375, 124000, 125000, 135625, 140000, 155000, 173600, 175000, 193750, 200000, 217000, 218750, 248000, 250000, 271250, 280000, 310000, 347200, 350000, 387500, 434000, 437500, 484375, 500000, 542500, 620000, 678125, 700000, 775000, 868000, 875000, 968750, 1000000, 1085000, 1240000, 1356250, 1400000, 1550000, 1736000, 1750000, 1937500, 2170000, 2712500, 3100000, 3390625, 3500000, 3875000, 4340000, 5425000, 6200000, 6781250, 7000000, 7750000, 8680000, 10850000, 13562500, 15500000, 21700000, 27125000, 31000000, 43400000, 54250000, 108500000, 217000000]

約数ペア:

[(1, 217000000), (2, 108500000), (4, 54250000), (5, 43400000), (7, 31000000), (8, 27125000), (10, 21700000), (14, 15500000), (16, 13562500), (20, 10850000), (25, 8680000), (28, 7750000), (31, 7000000), (32, 6781250), (35, 6200000), (40, 5425000), (50, 4340000), (56, 3875000), (62, 3500000), (64, 3390625), (70, 3100000), (80, 2712500), (100, 2170000), (112, 1937500), (124, 1750000), (125, 1736000), (140, 1550000), (155, 1400000), (160, 1356250), (175, 1240000), (200, 1085000), (217, 1000000), (224, 968750), (248, 875000), (250, 868000), (280, 775000), (310, 700000), (320, 678125), (350, 620000), (400, 542500), (434, 500000), (448, 484375), (496, 437500), (500, 434000), (560, 387500), (620, 350000), (625, 347200), (700, 310000), (775, 280000), (800, 271250), (868, 250000), (875, 248000), (992, 218750), (1000, 217000), (1085, 200000), (1120, 193750), (1240, 175000), (1250, 173600), (1400, 155000), (1550, 140000), (1600, 135625), (1736, 125000), (1750, 124000), (1984, 109375), (2000, 108500), (2170, 100000), (2240, 96875), (2480, 87500), (2500, 86800), (2800, 77500), (3100, 70000), (3125, 69440), (3472, 62500), (3500, 62000), (3875, 56000), (4000, 54250), (4340, 50000), (4375, 49600), (4960, 43750), (5000, 43400), (5425, 40000), (5600, 38750), (6200, 35000), (6250, 34720), (6944, 31250), (7000, 31000), (7750, 28000), (8000, 27125), (8680, 25000), (8750, 24800), (9920, 21875), (10000, 21700), (10850, 20000), (11200, 19375), (12400, 17500), (12500, 17360), (13888, 15625), (14000, 15500)]