290390639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{53117}}^1$

素因数の和:53206

約数の個数: 16

約数和(自身を含む): 367151616

約数和(自身を除く): 76760977

約数列:

[1, 7, 11, 71, 77, 497, 781, 5467, 53117, 371819, 584287, 3771307, 4090009, 26399149, 41484377, 290390639]

約数ペア:

[(1, 290390639), (7, 41484377), (11, 26399149), (71, 4090009), (77, 3771307), (497, 584287), (781, 371819), (5467, 53117)]