271250000

素因数分解:

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

素因数の和:81

約数の個数: 160

約数和(自身を含む): 774998016

約数和(自身を除く): 503748016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 125, 140, 155, 175, 200, 217, 248, 250, 280, 310, 350, 400, 434, 496, 500, 560, 620, 625, 700, 775, 868, 875, 1000, 1085, 1240, 1250, 1400, 1550, 1736, 1750, 2000, 2170, 2480, 2500, 2800, 3100, 3125, 3472, 3500, 3875, 4340, 4375, 5000, 5425, 6200, 6250, 7000, 7750, 8680, 8750, 10000, 10850, 12400, 12500, 14000, 15500, 15625, 17360, 17500, 19375, 21700, 21875, 25000, 27125, 31000, 31250, 35000, 38750, 43400, 43750, 50000, 54250, 62000, 62500, 70000, 77500, 78125, 86800, 87500, 96875, 108500, 109375, 125000, 135625, 155000, 156250, 175000, 193750, 217000, 218750, 250000, 271250, 310000, 312500, 350000, 387500, 434000, 437500, 484375, 542500, 546875, 625000, 678125, 775000, 875000, 968750, 1085000, 1093750, 1250000, 1356250, 1550000, 1750000, 1937500, 2170000, 2187500, 2421875, 2712500, 3390625, 3875000, 4375000, 4843750, 5425000, 6781250, 7750000, 8750000, 9687500, 10850000, 13562500, 16953125, 19375000, 27125000, 33906250, 38750000, 54250000, 67812500, 135625000, 271250000]

約数ペア:

[(1, 271250000), (2, 135625000), (4, 67812500), (5, 54250000), (7, 38750000), (8, 33906250), (10, 27125000), (14, 19375000), (16, 16953125), (20, 13562500), (25, 10850000), (28, 9687500), (31, 8750000), (35, 7750000), (40, 6781250), (50, 5425000), (56, 4843750), (62, 4375000), (70, 3875000), (80, 3390625), (100, 2712500), (112, 2421875), (124, 2187500), (125, 2170000), (140, 1937500), (155, 1750000), (175, 1550000), (200, 1356250), (217, 1250000), (248, 1093750), (250, 1085000), (280, 968750), (310, 875000), (350, 775000), (400, 678125), (434, 625000), (496, 546875), (500, 542500), (560, 484375), (620, 437500), (625, 434000), (700, 387500), (775, 350000), (868, 312500), (875, 310000), (1000, 271250), (1085, 250000), (1240, 218750), (1250, 217000), (1400, 193750), (1550, 175000), (1736, 156250), (1750, 155000), (2000, 135625), (2170, 125000), (2480, 109375), (2500, 108500), (2800, 96875), (3100, 87500), (3125, 86800), (3472, 78125), (3500, 77500), (3875, 70000), (4340, 62500), (4375, 62000), (5000, 54250), (5425, 50000), (6200, 43750), (6250, 43400), (7000, 38750), (7750, 35000), (8680, 31250), (8750, 31000), (10000, 27125), (10850, 25000), (12400, 21875), (12500, 21700), (14000, 19375), (15500, 17500), (15625, 17360)]