81626503

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 108345600

約数和(自身を除く): 26719097

約数列:

[1, 7, 17, 29, 31, 49, 109, 119, 203, 217, 493, 527, 763, 833, 899, 1421, 1519, 1853, 3161, 3379, 3451, 3689, 5341, 6293, 12971, 15283, 22127, 23653, 24157, 25823, 44051, 53737, 57443, 90797, 97991, 106981, 154889, 165571, 376159, 402101, 685937, 748867, 1665847, 2633113, 2814707, 4801559, 11660929, 81626503]

約数ペア:

[(1, 81626503), (7, 11660929), (17, 4801559), (29, 2814707), (31, 2633113), (49, 1665847), (109, 748867), (119, 685937), (203, 402101), (217, 376159), (493, 165571), (527, 154889), (763, 106981), (833, 97991), (899, 90797), (1421, 57443), (1519, 53737), (1853, 44051), (3161, 25823), (3379, 24157), (3451, 23653), (3689, 22127), (5341, 15283), (6293, 12971)]