51520105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{569}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 76608000

約数和(自身を除く): 25087895

約数列:

[1, 5, 7, 13, 35, 65, 91, 199, 455, 569, 995, 1393, 2587, 2845, 3983, 6965, 7397, 12935, 18109, 19915, 36985, 51779, 90545, 113231, 258895, 566155, 792617, 1472003, 3963085, 7360015, 10304021, 51520105]

約数ペア:

[(1, 51520105), (5, 10304021), (7, 7360015), (13, 3963085), (35, 1472003), (65, 792617), (91, 566155), (199, 258895), (455, 113231), (569, 90545), (995, 51779), (1393, 36985), (2587, 19915), (2845, 18109), (3983, 12935), (6965, 7397)]