20515690510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{680003}}^1$

素因数の和:680448

約数の個数: 32

約数和(自身を含む): 42301688832

約数和(自身を除く): 21785998322

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 431, 862, 2155, 3017, 4310, 6034, 15085, 30170, 680003, 1360006, 3400015, 4760021, 6800030, 9520042, 23800105, 47600210, 293081293, 586162586, 1465406465, 2051569051, 2930812930, 4103138102, 10257845255, 20515690510]

約数ペア:

[(1, 20515690510), (2, 10257845255), (5, 4103138102), (7, 2930812930), (10, 2051569051), (14, 1465406465), (35, 586162586), (70, 293081293), (431, 47600210), (862, 23800105), (2155, 9520042), (3017, 6800030), (4310, 4760021), (6034, 3400015), (15085, 1360006), (30170, 680003)]