1345280

素因数分解:

$2^8\times 5^1\times {\mathrm{1051}}^1$

素因数の和:1072

約数の個数: 36

約数和(自身を含む): 3225432

約数和(自身を除く): 1880152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1051, 1280, 2102, 4204, 5255, 8408, 10510, 16816, 21020, 33632, 42040, 67264, 84080, 134528, 168160, 269056, 336320, 672640, 1345280]

約数ペア:

[(1, 1345280), (2, 672640), (4, 336320), (5, 269056), (8, 168160), (10, 134528), (16, 84080), (20, 67264), (32, 42040), (40, 33632), (64, 21020), (80, 16816), (128, 10510), (160, 8408), (256, 5255), (320, 4204), (640, 2102), (1051, 1280)]