208031125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 276756480

約数和(自身を除く): 68725355

約数列:

[1, 5, 17, 25, 85, 125, 223, 425, 439, 1115, 2125, 2195, 3791, 5575, 7463, 10975, 18955, 27875, 37315, 54875, 94775, 97897, 186575, 473875, 489485, 932875, 1664249, 2447425, 8321245, 12237125, 41606225, 208031125]

約数ペア:

[(1, 208031125), (5, 41606225), (17, 12237125), (25, 8321245), (85, 2447425), (125, 1664249), (223, 932875), (425, 489485), (439, 473875), (1115, 186575), (2125, 97897), (2195, 94775), (3791, 54875), (5575, 37315), (7463, 27875), (10975, 18955)]