290820686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1$

素因数の和:956

約数の個数: 32

約数和(自身を含む): 479037888

約数和(自身を除く): 188217202

約数列:

[1, 2, 13, 26, 71, 142, 257, 514, 613, 923, 1226, 1846, 3341, 6682, 7969, 15938, 18247, 36494, 43523, 87046, 157541, 237211, 315082, 474422, 565799, 1131598, 2048033, 4096066, 11185411, 22370822, 145410343, 290820686]

約数ペア:

[(1, 290820686), (2, 145410343), (13, 22370822), (26, 11185411), (71, 4096066), (142, 2048033), (257, 1131598), (514, 565799), (613, 474422), (923, 315082), (1226, 237211), (1846, 157541), (3341, 87046), (6682, 43523), (7969, 36494), (15938, 18247)]