1277304320

素因数分解:

$2^9\times 5^1\times {\mathrm{498947}}^1$

素因数の和:498970

約数の個数: 40

約数和(自身を含む): 3062542824

約数和(自身を除く): 1785238504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 498947, 997894, 1995788, 2494735, 3991576, 4989470, 7983152, 9978940, 15966304, 19957880, 31932608, 39915760, 63865216, 79831520, 127730432, 159663040, 255460864, 319326080, 638652160, 1277304320]

約数ペア:

[(1, 1277304320), (2, 638652160), (4, 319326080), (5, 255460864), (8, 159663040), (10, 127730432), (16, 79831520), (20, 63865216), (32, 39915760), (40, 31932608), (64, 19957880), (80, 15966304), (128, 9978940), (160, 7983152), (256, 4989470), (320, 3991576), (512, 2494735), (640, 1995788), (1280, 997894), (2560, 498947)]