64750000

素因数分解:

$2^4\times 5^6\times 7^1\times {\mathrm{37}}^1$

素因数の和:82

約数の個数: 140

約数和(自身を含む): 184060144

約数和(自身を除く): 119310144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 37, 40, 50, 56, 70, 74, 80, 100, 112, 125, 140, 148, 175, 185, 200, 250, 259, 280, 296, 350, 370, 400, 500, 518, 560, 592, 625, 700, 740, 875, 925, 1000, 1036, 1250, 1295, 1400, 1480, 1750, 1850, 2000, 2072, 2500, 2590, 2800, 2960, 3125, 3500, 3700, 4144, 4375, 4625, 5000, 5180, 6250, 6475, 7000, 7400, 8750, 9250, 10000, 10360, 12500, 12950, 14000, 14800, 15625, 17500, 18500, 20720, 21875, 23125, 25000, 25900, 31250, 32375, 35000, 37000, 43750, 46250, 50000, 51800, 62500, 64750, 70000, 74000, 87500, 92500, 103600, 109375, 115625, 125000, 129500, 161875, 175000, 185000, 218750, 231250, 250000, 259000, 323750, 350000, 370000, 437500, 462500, 518000, 578125, 647500, 809375, 875000, 925000, 1156250, 1295000, 1618750, 1750000, 1850000, 2312500, 2590000, 3237500, 4046875, 4625000, 6475000, 8093750, 9250000, 12950000, 16187500, 32375000, 64750000]

約数ペア:

[(1, 64750000), (2, 32375000), (4, 16187500), (5, 12950000), (7, 9250000), (8, 8093750), (10, 6475000), (14, 4625000), (16, 4046875), (20, 3237500), (25, 2590000), (28, 2312500), (35, 1850000), (37, 1750000), (40, 1618750), (50, 1295000), (56, 1156250), (70, 925000), (74, 875000), (80, 809375), (100, 647500), (112, 578125), (125, 518000), (140, 462500), (148, 437500), (175, 370000), (185, 350000), (200, 323750), (250, 259000), (259, 250000), (280, 231250), (296, 218750), (350, 185000), (370, 175000), (400, 161875), (500, 129500), (518, 125000), (560, 115625), (592, 109375), (625, 103600), (700, 92500), (740, 87500), (875, 74000), (925, 70000), (1000, 64750), (1036, 62500), (1250, 51800), (1295, 50000), (1400, 46250), (1480, 43750), (1750, 37000), (1850, 35000), (2000, 32375), (2072, 31250), (2500, 25900), (2590, 25000), (2800, 23125), (2960, 21875), (3125, 20720), (3500, 18500), (3700, 17500), (4144, 15625), (4375, 14800), (4625, 14000), (5000, 12950), (5180, 12500), (6250, 10360), (6475, 10000), (7000, 9250), (7400, 8750)]