201638740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{1747}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 440496000

約数和(自身を除く): 238857260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 290, 398, 580, 796, 995, 1747, 1990, 3494, 3980, 5771, 6988, 8735, 11542, 17470, 23084, 28855, 34940, 50663, 57710, 101326, 115420, 202652, 253315, 347653, 506630, 695306, 1013260, 1390612, 1738265, 3476530, 6953060, 10081937, 20163874, 40327748, 50409685, 100819370, 201638740]

約数ペア:

[(1, 201638740), (2, 100819370), (4, 50409685), (5, 40327748), (10, 20163874), (20, 10081937), (29, 6953060), (58, 3476530), (116, 1738265), (145, 1390612), (199, 1013260), (290, 695306), (398, 506630), (580, 347653), (796, 253315), (995, 202652), (1747, 115420), (1990, 101326), (3494, 57710), (3980, 50663), (5771, 34940), (6988, 28855), (8735, 23084), (11542, 17470)]