208750465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{4139}}^1$

素因数の和:4293

約数の個数: 32

約数和(自身を含む): 314772480

約数和(自身を除く): 106022015

約数列:

[1, 5, 7, 11, 35, 55, 77, 131, 385, 655, 917, 1441, 4139, 4585, 7205, 10087, 20695, 28973, 45529, 50435, 144865, 227645, 318703, 542209, 1593515, 2711045, 3795463, 5964299, 18977315, 29821495, 41750093, 208750465]

約数ペア:

[(1, 208750465), (5, 41750093), (7, 29821495), (11, 18977315), (35, 5964299), (55, 3795463), (77, 2711045), (131, 1593515), (385, 542209), (655, 318703), (917, 227645), (1441, 144865), (4139, 50435), (4585, 45529), (7205, 28973), (10087, 20695)]