205122740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{4091}}^1$

素因数の和:4232

約数の個数: 48

約数和(自身を含む): 453720960

約数和(自身を除く): 248598220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 1090, 2180, 2507, 4091, 5014, 8182, 10028, 12535, 16364, 20455, 25070, 40910, 50140, 81820, 94093, 188186, 376372, 445919, 470465, 891838, 940930, 1783676, 1881860, 2229595, 4459190, 8918380, 10256137, 20512274, 41024548, 51280685, 102561370, 205122740]

約数ペア:

[(1, 205122740), (2, 102561370), (4, 51280685), (5, 41024548), (10, 20512274), (20, 10256137), (23, 8918380), (46, 4459190), (92, 2229595), (109, 1881860), (115, 1783676), (218, 940930), (230, 891838), (436, 470465), (460, 445919), (545, 376372), (1090, 188186), (2180, 94093), (2507, 81820), (4091, 50140), (5014, 40910), (8182, 25070), (10028, 20455), (12535, 16364)]