256776880

素因数分解:

$2^4\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{2741}}^1$

素因数の和:3925

約数の個数: 40

約数和(自身を含む): 597734064

約数和(自身を除く): 340957184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1171, 2342, 2741, 4684, 5482, 5855, 9368, 10964, 11710, 13705, 18736, 21928, 23420, 27410, 43856, 46840, 54820, 93680, 109640, 219280, 3209711, 6419422, 12838844, 16048555, 25677688, 32097110, 51355376, 64194220, 128388440, 256776880]

約数ペア:

[(1, 256776880), (2, 128388440), (4, 64194220), (5, 51355376), (8, 32097110), (10, 25677688), (16, 16048555), (20, 12838844), (40, 6419422), (80, 3209711), (1171, 219280), (2342, 109640), (2741, 93680), (4684, 54820), (5482, 46840), (5855, 43856), (9368, 27410), (10964, 23420), (11710, 21928), (13705, 18736)]