257360720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{68447}}^1$

素因数の和:68507

約数の個数: 40

約数和(自身を含む): 611103744

約数和(自身を除く): 353743024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 68447, 136894, 273788, 342235, 547576, 684470, 1095152, 1368940, 2737880, 3217009, 5475760, 6434018, 12868036, 16085045, 25736072, 32170090, 51472144, 64340180, 128680360, 257360720]

約数ペア:

[(1, 257360720), (2, 128680360), (4, 64340180), (5, 51472144), (8, 32170090), (10, 25736072), (16, 16085045), (20, 12868036), (40, 6434018), (47, 5475760), (80, 3217009), (94, 2737880), (188, 1368940), (235, 1095152), (376, 684470), (470, 547576), (752, 342235), (940, 273788), (1880, 136894), (3760, 68447)]