64695440

素因数分解:

$2^4\times 5^1\times {\mathrm{808693}}^1$

素因数の和:808706

約数の個数: 20

約数和(自身を含む): 150417084

約数和(自身を除く): 85721644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 808693, 1617386, 3234772, 4043465, 6469544, 8086930, 12939088, 16173860, 32347720, 64695440]

約数ペア:

[(1, 64695440), (2, 32347720), (4, 16173860), (5, 12939088), (8, 8086930), (10, 6469544), (16, 4043465), (20, 3234772), (40, 1617386), (80, 808693)]