13456660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{347}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 32505984

約数和(自身を除く): 19049324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 347, 554, 694, 1108, 1385, 1388, 1735, 1939, 2429, 2770, 3470, 3878, 4858, 5540, 6940, 7756, 9695, 9716, 12145, 19390, 24290, 38780, 48580, 96119, 192238, 384476, 480595, 672833, 961190, 1345666, 1922380, 2691332, 3364165, 6728330, 13456660]

約数ペア:

[(1, 13456660), (2, 6728330), (4, 3364165), (5, 2691332), (7, 1922380), (10, 1345666), (14, 961190), (20, 672833), (28, 480595), (35, 384476), (70, 192238), (140, 96119), (277, 48580), (347, 38780), (554, 24290), (694, 19390), (1108, 12145), (1385, 9716), (1388, 9695), (1735, 7756), (1939, 6940), (2429, 5540), (2770, 4858), (3470, 3878)]