256331481

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^2$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 418366464

約数和(自身を除く): 162034983

約数列:

[1, 3, 7, 21, 23, 67, 69, 89, 161, 201, 267, 469, 483, 623, 1407, 1541, 1869, 2047, 4623, 5963, 6141, 7921, 10787, 14329, 17889, 23763, 32361, 41741, 42987, 55447, 125223, 137149, 166341, 182183, 411447, 530707, 546549, 960043, 1275281, 1592121, 2880129, 3714949, 3825843, 11144847, 12206261, 36618783, 85443827, 256331481]

約数ペア:

[(1, 256331481), (3, 85443827), (7, 36618783), (21, 12206261), (23, 11144847), (67, 3825843), (69, 3714949), (89, 2880129), (161, 1592121), (201, 1275281), (267, 960043), (469, 546549), (483, 530707), (623, 411447), (1407, 182183), (1541, 166341), (1869, 137149), (2047, 125223), (4623, 55447), (5963, 42987), (6141, 41741), (7921, 32361), (10787, 23763), (14329, 17889)]