8198849720

素因数分解:

$2^3\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{127549}}^1$

素因数の和:129167

約数の個数: 32

約数和(自身を含む): 18459036000

約数和(自身を除く): 10260186280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1607, 3214, 6428, 8035, 12856, 16070, 32140, 64280, 127549, 255098, 510196, 637745, 1020392, 1275490, 2550980, 5101960, 204971243, 409942486, 819884972, 1024856215, 1639769944, 2049712430, 4099424860, 8198849720]

約数ペア:

[(1, 8198849720), (2, 4099424860), (4, 2049712430), (5, 1639769944), (8, 1024856215), (10, 819884972), (20, 409942486), (40, 204971243), (1607, 5101960), (3214, 2550980), (6428, 1275490), (8035, 1020392), (12856, 637745), (16070, 510196), (32140, 255098), (64280, 127549)]