20454929080

素因数分解:

$2^3\times 5^1\times {\mathrm{2663}}^1\times {\mathrm{192029}}^1$

素因数の和:194703

約数の個数: 32

約数和(自身を含む): 46041112800

約数和(自身を除く): 25586183720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2663, 5326, 10652, 13315, 21304, 26630, 53260, 106520, 192029, 384058, 768116, 960145, 1536232, 1920290, 3840580, 7681160, 511373227, 1022746454, 2045492908, 2556866135, 4090985816, 5113732270, 10227464540, 20454929080]

約数ペア:

[(1, 20454929080), (2, 10227464540), (4, 5113732270), (5, 4090985816), (8, 2556866135), (10, 2045492908), (20, 1022746454), (40, 511373227), (2663, 7681160), (5326, 3840580), (10652, 1920290), (13315, 1536232), (21304, 960145), (26630, 768116), (53260, 384058), (106520, 192029)]