20685200

素因数分解:

$2^4\times 5^2\times {\mathrm{51713}}^1$

素因数の和:51731

約数の個数: 30

約数和(自身を含む): 49697154

約数和(自身を除く): 29011954

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51713, 103426, 206852, 258565, 413704, 517130, 827408, 1034260, 1292825, 2068520, 2585650, 4137040, 5171300, 10342600, 20685200]

約数ペア:

[(1, 20685200), (2, 10342600), (4, 5171300), (5, 4137040), (8, 2585650), (10, 2068520), (16, 1292825), (20, 1034260), (25, 827408), (40, 517130), (50, 413704), (80, 258565), (100, 206852), (200, 103426), (400, 51713)]