64280000

素因数分解:

$2^6\times 5^4\times {\mathrm{1607}}^1$

素因数の和:1639

約数の個数: 70

約数和(自身を含む): 159492696

約数和(自身を除く): 95212696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 1607, 2000, 2500, 3214, 4000, 5000, 6428, 8000, 8035, 10000, 12856, 16070, 20000, 25712, 32140, 40000, 40175, 51424, 64280, 80350, 102848, 128560, 160700, 200875, 257120, 321400, 401750, 514240, 642800, 803500, 1004375, 1285600, 1607000, 2008750, 2571200, 3214000, 4017500, 6428000, 8035000, 12856000, 16070000, 32140000, 64280000]

約数ペア:

[(1, 64280000), (2, 32140000), (4, 16070000), (5, 12856000), (8, 8035000), (10, 6428000), (16, 4017500), (20, 3214000), (25, 2571200), (32, 2008750), (40, 1607000), (50, 1285600), (64, 1004375), (80, 803500), (100, 642800), (125, 514240), (160, 401750), (200, 321400), (250, 257120), (320, 200875), (400, 160700), (500, 128560), (625, 102848), (800, 80350), (1000, 64280), (1250, 51424), (1600, 40175), (1607, 40000), (2000, 32140), (2500, 25712), (3214, 20000), (4000, 16070), (5000, 12856), (6428, 10000), (8000, 8035)]