256489079

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 343504800

約数和(自身を除く): 87015721

約数列:

[1, 7, 11, 29, 49, 61, 77, 203, 269, 319, 427, 539, 671, 1421, 1769, 1883, 2233, 2959, 2989, 4697, 7801, 12383, 13181, 15631, 16409, 19459, 20713, 32879, 54607, 85811, 86681, 114863, 136213, 144991, 180499, 382249, 475861, 600677, 804041, 953491, 1263493, 3331027, 4204739, 5234471, 8844451, 23317189, 36641297, 256489079]

約数ペア:

[(1, 256489079), (7, 36641297), (11, 23317189), (29, 8844451), (49, 5234471), (61, 4204739), (77, 3331027), (203, 1263493), (269, 953491), (319, 804041), (427, 600677), (539, 475861), (671, 382249), (1421, 180499), (1769, 144991), (1883, 136213), (2233, 114863), (2959, 86681), (2989, 85811), (4697, 54607), (7801, 32879), (12383, 20713), (13181, 19459), (15631, 16409)]