1280147253

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{877}}^1$

素因数の和:1058

約数の個数: 64

約数和(自身を含む): 2184744960

約数和(自身を除く): 904597707

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 89, 213, 231, 267, 497, 623, 781, 877, 979, 1491, 1869, 2343, 2631, 2937, 5467, 6139, 6319, 6853, 9647, 16401, 18417, 18957, 20559, 28941, 44233, 62267, 67529, 69509, 78053, 132699, 186801, 202587, 208527, 234159, 435869, 486563, 546371, 684937, 858583, 1307607, 1459689, 1639113, 2054811, 2575749, 4794559, 5541763, 6010081, 14383677, 16625289, 18030243, 38792341, 60959393, 116377023, 182878179, 426715751, 1280147253]

約数ペア:

[(1, 1280147253), (3, 426715751), (7, 182878179), (11, 116377023), (21, 60959393), (33, 38792341), (71, 18030243), (77, 16625289), (89, 14383677), (213, 6010081), (231, 5541763), (267, 4794559), (497, 2575749), (623, 2054811), (781, 1639113), (877, 1459689), (979, 1307607), (1491, 858583), (1869, 684937), (2343, 546371), (2631, 486563), (2937, 435869), (5467, 234159), (6139, 208527), (6319, 202587), (6853, 186801), (9647, 132699), (16401, 78053), (18417, 69509), (18957, 67529), (20559, 62267), (28941, 44233)]