78217280

素因数分解:

$2^6\times 5^1\times {\mathrm{244429}}^1$

素因数の和:244446

約数の個数: 28

約数和(自身を含む): 186255660

約数和(自身を除く): 108038380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 244429, 488858, 977716, 1222145, 1955432, 2444290, 3910864, 4888580, 7821728, 9777160, 15643456, 19554320, 39108640, 78217280]

約数ペア:

[(1, 78217280), (2, 39108640), (4, 19554320), (5, 15643456), (8, 9777160), (10, 7821728), (16, 4888580), (20, 3910864), (32, 2444290), (40, 1955432), (64, 1222145), (80, 977716), (160, 488858), (320, 244429)]