20280491245

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{505181}}^1$

素因数の和:505261

約数の個数: 32

約数和(自身を含む): 29486462976

約数和(自身を除く): 9205971731

約数列:

[1, 5, 7, 31, 35, 37, 155, 185, 217, 259, 1085, 1147, 1295, 5735, 8029, 40145, 505181, 2525905, 3536267, 15660611, 17681335, 18691697, 78303055, 93458485, 109624277, 130841879, 548121385, 579442607, 654209395, 2897213035, 4056098249, 20280491245]

約数ペア:

[(1, 20280491245), (5, 4056098249), (7, 2897213035), (31, 654209395), (35, 579442607), (37, 548121385), (155, 130841879), (185, 109624277), (217, 93458485), (259, 78303055), (1085, 18691697), (1147, 17681335), (1295, 15660611), (5735, 3536267), (8029, 2525905), (40145, 505181)]