217295065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 286675200

約数和(自身を除く): 69380135

約数列:

[1, 5, 13, 65, 107, 157, 199, 535, 785, 995, 1391, 2041, 2587, 6955, 10205, 12935, 16799, 21293, 31243, 83995, 106465, 156215, 218387, 276809, 406159, 1091935, 1384045, 2030795, 3343001, 16715005, 43459013, 217295065]

約数ペア:

[(1, 217295065), (5, 43459013), (13, 16715005), (65, 3343001), (107, 2030795), (157, 1384045), (199, 1091935), (535, 406159), (785, 276809), (995, 218387), (1391, 156215), (2041, 106465), (2587, 83995), (6955, 31243), (10205, 21293), (12935, 16799)]