2608640

素因数分解:

$2^9\times 5^1\times {\mathrm{1019}}^1$

素因数の和:1042

約数の個数: 40

約数和(自身を含む): 6260760

約数和(自身を除く): 3652120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1019, 1280, 2038, 2560, 4076, 5095, 8152, 10190, 16304, 20380, 32608, 40760, 65216, 81520, 130432, 163040, 260864, 326080, 521728, 652160, 1304320, 2608640]

約数ペア:

[(1, 2608640), (2, 1304320), (4, 652160), (5, 521728), (8, 326080), (10, 260864), (16, 163040), (20, 130432), (32, 81520), (40, 65216), (64, 40760), (80, 32608), (128, 20380), (160, 16304), (256, 10190), (320, 8152), (512, 5095), (640, 4076), (1019, 2560), (1280, 2038)]