25754540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2591}}^1$

素因数の和:2678

約数の個数: 48

約数和(自身を含む): 62705664

約数和(自身を除く): 36951124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 2591, 4970, 5182, 9940, 10364, 12955, 18137, 25910, 36274, 51820, 72548, 90685, 181370, 183961, 362740, 367922, 735844, 919805, 1287727, 1839610, 2575454, 3679220, 5150908, 6438635, 12877270, 25754540]

約数ペア:

[(1, 25754540), (2, 12877270), (4, 6438635), (5, 5150908), (7, 3679220), (10, 2575454), (14, 1839610), (20, 1287727), (28, 919805), (35, 735844), (70, 367922), (71, 362740), (140, 183961), (142, 181370), (284, 90685), (355, 72548), (497, 51820), (710, 36274), (994, 25910), (1420, 18137), (1988, 12955), (2485, 10364), (2591, 9940), (4970, 5182)]