65078140

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{6469}}^1$

素因数の和:6981

約数の個数: 24

約数和(自身を含む): 136956960

約数和(自身を除く): 71878820

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 6469, 10060, 12938, 25876, 32345, 64690, 129380, 3253907, 6507814, 13015628, 16269535, 32539070, 65078140]

約数ペア:

[(1, 65078140), (2, 32539070), (4, 16269535), (5, 13015628), (10, 6507814), (20, 3253907), (503, 129380), (1006, 64690), (2012, 32345), (2515, 25876), (5030, 12938), (6469, 10060)]