89950000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{257}}^1$

素因数の和:297

約数の個数: 120

約数和(自身を含む): 249921504

約数和(自身を除く): 159971504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 257, 280, 350, 400, 500, 514, 560, 625, 700, 875, 1000, 1028, 1250, 1285, 1400, 1750, 1799, 2000, 2056, 2500, 2570, 2800, 3125, 3500, 3598, 4112, 4375, 5000, 5140, 6250, 6425, 7000, 7196, 8750, 8995, 10000, 10280, 12500, 12850, 14000, 14392, 17500, 17990, 20560, 21875, 25000, 25700, 28784, 32125, 35000, 35980, 43750, 44975, 50000, 51400, 64250, 70000, 71960, 87500, 89950, 102800, 128500, 143920, 160625, 175000, 179900, 224875, 257000, 321250, 350000, 359800, 449750, 514000, 642500, 719600, 803125, 899500, 1124375, 1285000, 1606250, 1799000, 2248750, 2570000, 3212500, 3598000, 4497500, 5621875, 6425000, 8995000, 11243750, 12850000, 17990000, 22487500, 44975000, 89950000]

約数ペア:

[(1, 89950000), (2, 44975000), (4, 22487500), (5, 17990000), (7, 12850000), (8, 11243750), (10, 8995000), (14, 6425000), (16, 5621875), (20, 4497500), (25, 3598000), (28, 3212500), (35, 2570000), (40, 2248750), (50, 1799000), (56, 1606250), (70, 1285000), (80, 1124375), (100, 899500), (112, 803125), (125, 719600), (140, 642500), (175, 514000), (200, 449750), (250, 359800), (257, 350000), (280, 321250), (350, 257000), (400, 224875), (500, 179900), (514, 175000), (560, 160625), (625, 143920), (700, 128500), (875, 102800), (1000, 89950), (1028, 87500), (1250, 71960), (1285, 70000), (1400, 64250), (1750, 51400), (1799, 50000), (2000, 44975), (2056, 43750), (2500, 35980), (2570, 35000), (2800, 32125), (3125, 28784), (3500, 25700), (3598, 25000), (4112, 21875), (4375, 20560), (5000, 17990), (5140, 17500), (6250, 14392), (6425, 14000), (7000, 12850), (7196, 12500), (8750, 10280), (8995, 10000)]