9990475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2137}}^1$

素因数の和:2175

約数の個数: 24

約数和(自身を含む): 14316048

約数和(自身を除く): 4325573

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 2137, 4675, 10685, 23507, 36329, 53425, 117535, 181645, 399619, 587675, 908225, 1998095, 9990475]

約数ペア:

[(1, 9990475), (5, 1998095), (11, 908225), (17, 587675), (25, 399619), (55, 181645), (85, 117535), (187, 53425), (275, 36329), (425, 23507), (935, 10685), (2137, 4675)]