256504638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{16693}}^1$

素因数の和:16908

約数の個数: 32

約数和(自身を含む): 555309216

約数和(自身を除く): 298804578

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 197, 394, 591, 1182, 2561, 5122, 7683, 15366, 16693, 33386, 50079, 100158, 217009, 434018, 651027, 1302054, 3288521, 6577042, 9865563, 19731126, 42750773, 85501546, 128252319, 256504638]

約数ペア:

[(1, 256504638), (2, 128252319), (3, 85501546), (6, 42750773), (13, 19731126), (26, 9865563), (39, 6577042), (78, 3288521), (197, 1302054), (394, 651027), (591, 434018), (1182, 217009), (2561, 100158), (5122, 50079), (7683, 33386), (15366, 16693)]