257542000

素因数分解:

$2^4\times 5^3\times {\mathrm{61}}^1\times {\mathrm{2111}}^1$

素因数の和:2195

約数の個数: 80

約数和(自身を含む): 633245184

約数和(自身を除く): 375703184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 200, 244, 250, 305, 400, 488, 500, 610, 976, 1000, 1220, 1525, 2000, 2111, 2440, 3050, 4222, 4880, 6100, 7625, 8444, 10555, 12200, 15250, 16888, 21110, 24400, 30500, 33776, 42220, 52775, 61000, 84440, 105550, 122000, 128771, 168880, 211100, 257542, 263875, 422200, 515084, 527750, 643855, 844400, 1030168, 1055500, 1287710, 2060336, 2111000, 2575420, 3219275, 4222000, 5150840, 6438550, 10301680, 12877100, 16096375, 25754200, 32192750, 51508400, 64385500, 128771000, 257542000]

約数ペア:

[(1, 257542000), (2, 128771000), (4, 64385500), (5, 51508400), (8, 32192750), (10, 25754200), (16, 16096375), (20, 12877100), (25, 10301680), (40, 6438550), (50, 5150840), (61, 4222000), (80, 3219275), (100, 2575420), (122, 2111000), (125, 2060336), (200, 1287710), (244, 1055500), (250, 1030168), (305, 844400), (400, 643855), (488, 527750), (500, 515084), (610, 422200), (976, 263875), (1000, 257542), (1220, 211100), (1525, 168880), (2000, 128771), (2111, 122000), (2440, 105550), (3050, 84440), (4222, 61000), (4880, 52775), (6100, 42220), (7625, 33776), (8444, 30500), (10555, 24400), (12200, 21110), (15250, 16888)]