509950000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 1487904768

約数和(自身を除く): 977954768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 47, 50, 56, 62, 70, 80, 94, 100, 112, 124, 125, 140, 155, 175, 188, 200, 217, 235, 248, 250, 280, 310, 329, 350, 376, 400, 434, 470, 496, 500, 560, 620, 625, 658, 700, 752, 775, 868, 875, 940, 1000, 1085, 1175, 1240, 1250, 1316, 1400, 1457, 1550, 1645, 1736, 1750, 1880, 2000, 2170, 2350, 2480, 2500, 2632, 2800, 2914, 3100, 3125, 3290, 3472, 3500, 3760, 3875, 4340, 4375, 4700, 5000, 5264, 5425, 5828, 5875, 6200, 6250, 6580, 7000, 7285, 7750, 8225, 8680, 8750, 9400, 10000, 10199, 10850, 11656, 11750, 12400, 12500, 13160, 14000, 14570, 15500, 16450, 17360, 17500, 18800, 19375, 20398, 21700, 21875, 23312, 23500, 25000, 26320, 27125, 29140, 29375, 31000, 32900, 35000, 36425, 38750, 40796, 41125, 43400, 43750, 47000, 50000, 50995, 54250, 58280, 58750, 62000, 65800, 70000, 72850, 77500, 81592, 82250, 86800, 87500, 94000, 96875, 101990, 108500, 116560, 117500, 131600, 135625, 145700, 146875, 155000, 163184, 164500, 175000, 182125, 193750, 203980, 205625, 217000, 235000, 254975, 271250, 291400, 293750, 310000, 329000, 350000, 364250, 387500, 407960, 411250, 434000, 470000, 509950, 542500, 582800, 587500, 658000, 678125, 728500, 775000, 815920, 822500, 910625, 1019900, 1028125, 1085000, 1175000, 1274875, 1356250, 1457000, 1550000, 1645000, 1821250, 2039800, 2056250, 2170000, 2350000, 2549750, 2712500, 2914000, 3290000, 3642500, 4079600, 4112500, 4553125, 5099500, 5425000, 6374375, 7285000, 8225000, 9106250, 10199000, 10850000, 12748750, 14570000, 16450000, 18212500, 20398000, 25497500, 31871875, 36425000, 50995000, 63743750, 72850000, 101990000, 127487500, 254975000, 509950000]

約数ペア:

[(1, 509950000), (2, 254975000), (4, 127487500), (5, 101990000), (7, 72850000), (8, 63743750), (10, 50995000), (14, 36425000), (16, 31871875), (20, 25497500), (25, 20398000), (28, 18212500), (31, 16450000), (35, 14570000), (40, 12748750), (47, 10850000), (50, 10199000), (56, 9106250), (62, 8225000), (70, 7285000), (80, 6374375), (94, 5425000), (100, 5099500), (112, 4553125), (124, 4112500), (125, 4079600), (140, 3642500), (155, 3290000), (175, 2914000), (188, 2712500), (200, 2549750), (217, 2350000), (235, 2170000), (248, 2056250), (250, 2039800), (280, 1821250), (310, 1645000), (329, 1550000), (350, 1457000), (376, 1356250), (400, 1274875), (434, 1175000), (470, 1085000), (496, 1028125), (500, 1019900), (560, 910625), (620, 822500), (625, 815920), (658, 775000), (700, 728500), (752, 678125), (775, 658000), (868, 587500), (875, 582800), (940, 542500), (1000, 509950), (1085, 470000), (1175, 434000), (1240, 411250), (1250, 407960), (1316, 387500), (1400, 364250), (1457, 350000), (1550, 329000), (1645, 310000), (1736, 293750), (1750, 291400), (1880, 271250), (2000, 254975), (2170, 235000), (2350, 217000), (2480, 205625), (2500, 203980), (2632, 193750), (2800, 182125), (2914, 175000), (3100, 164500), (3125, 163184), (3290, 155000), (3472, 146875), (3500, 145700), (3760, 135625), (3875, 131600), (4340, 117500), (4375, 116560), (4700, 108500), (5000, 101990), (5264, 96875), (5425, 94000), (5828, 87500), (5875, 86800), (6200, 82250), (6250, 81592), (6580, 77500), (7000, 72850), (7285, 70000), (7750, 65800), (8225, 62000), (8680, 58750), (8750, 58280), (9400, 54250), (10000, 50995), (10199, 50000), (10850, 47000), (11656, 43750), (11750, 43400), (12400, 41125), (12500, 40796), (13160, 38750), (14000, 36425), (14570, 35000), (15500, 32900), (16450, 31000), (17360, 29375), (17500, 29140), (18800, 27125), (19375, 26320), (20398, 25000), (21700, 23500), (21875, 23312)]