15987225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12539}}^1$

素因数の和:12569

約数の個数: 24

約数和(自身を含む): 27989280

約数和(自身を除く): 12002055

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 12539, 37617, 62695, 188085, 213163, 313475, 639489, 940425, 1065815, 3197445, 5329075, 15987225]

約数ペア:

[(1, 15987225), (3, 5329075), (5, 3197445), (15, 1065815), (17, 940425), (25, 639489), (51, 313475), (75, 213163), (85, 188085), (255, 62695), (425, 37617), (1275, 12539)]