28008275

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 35786400

約数和(自身を除く): 7778125

約数列:

[1, 5, 25, 73, 103, 149, 365, 515, 745, 1825, 2575, 3725, 7519, 10877, 15347, 37595, 54385, 76735, 187975, 271925, 383675, 1120331, 5601655, 28008275]

約数ペア:

[(1, 28008275), (5, 5601655), (25, 1120331), (73, 383675), (103, 271925), (149, 187975), (365, 76735), (515, 54385), (745, 37595), (1825, 15347), (2575, 10877), (3725, 7519)]