63751640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8009}}^1$

素因数の和:8219

約数の個数: 32

約数和(自身を含む): 144180000

約数和(自身を除く): 80428360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 8009, 16018, 32036, 40045, 64072, 80090, 160180, 320360, 1593791, 3187582, 6375164, 7968955, 12750328, 15937910, 31875820, 63751640]

約数ペア:

[(1, 63751640), (2, 31875820), (4, 15937910), (5, 12750328), (8, 7968955), (10, 6375164), (20, 3187582), (40, 1593791), (199, 320360), (398, 160180), (796, 80090), (995, 64072), (1592, 40045), (1990, 32036), (3980, 16018), (7960, 8009)]