2511325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 3481920

約数和(自身を除く): 970595

約数列:

[1, 5, 17, 19, 25, 85, 95, 311, 323, 425, 475, 1555, 1615, 5287, 5909, 7775, 8075, 26435, 29545, 100453, 132175, 147725, 502265, 2511325]

約数ペア:

[(1, 2511325), (5, 502265), (17, 147725), (19, 132175), (25, 100453), (85, 29545), (95, 26435), (311, 8075), (323, 7775), (425, 5909), (475, 5287), (1555, 1615)]