128500400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{45893}}^1$

素因数の和:45918

約数の個数: 60

約数和(自身を含む): 352833072

約数和(自身を除く): 224332672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 45893, 91786, 183572, 229465, 321251, 367144, 458930, 642502, 734288, 917860, 1147325, 1285004, 1606255, 1835720, 2294650, 2570008, 3212510, 3671440, 4589300, 5140016, 6425020, 8031275, 9178600, 12850040, 16062550, 18357200, 25700080, 32125100, 64250200, 128500400]

約数ペア:

[(1, 128500400), (2, 64250200), (4, 32125100), (5, 25700080), (7, 18357200), (8, 16062550), (10, 12850040), (14, 9178600), (16, 8031275), (20, 6425020), (25, 5140016), (28, 4589300), (35, 3671440), (40, 3212510), (50, 2570008), (56, 2294650), (70, 1835720), (80, 1606255), (100, 1285004), (112, 1147325), (140, 917860), (175, 734288), (200, 642502), (280, 458930), (350, 367144), (400, 321251), (560, 229465), (700, 183572), (1400, 91786), (2800, 45893)]