257025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 446400

約数和(自身を除く): 189375

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 149, 345, 447, 575, 745, 1725, 2235, 3427, 3725, 10281, 11175, 17135, 51405, 85675, 257025]

約数ペア:

[(1, 257025), (3, 85675), (5, 51405), (15, 17135), (23, 11175), (25, 10281), (69, 3725), (75, 3427), (115, 2235), (149, 1725), (345, 745), (447, 575)]