78589120

素因数分解:

$2^6\times 5^1\times {\mathrm{245591}}^1$

素因数の和:245608

約数の個数: 28

約数和(自身を含む): 187141104

約数和(自身を除く): 108551984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245591, 491182, 982364, 1227955, 1964728, 2455910, 3929456, 4911820, 7858912, 9823640, 15717824, 19647280, 39294560, 78589120]

約数ペア:

[(1, 78589120), (2, 39294560), (4, 19647280), (5, 15717824), (8, 9823640), (10, 7858912), (16, 4911820), (20, 3929456), (32, 2455910), (40, 1964728), (64, 1227955), (80, 982364), (160, 491182), (320, 245591)]