290339

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 16

約数和(自身を含む): 364800

約数和(自身を除く): 74461

約数列:

[1, 7, 19, 37, 59, 133, 259, 413, 703, 1121, 2183, 4921, 7847, 15281, 41477, 290339]

約数ペア:

[(1, 290339), (7, 41477), (19, 15281), (37, 7847), (59, 4921), (133, 2183), (259, 1121), (413, 703)]