209500660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{3181}}^1$

素因数の和:3316

約数の個数: 48

約数和(自身を含む): 457062480

約数和(自身を除く): 247561820

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 356, 370, 445, 740, 890, 1780, 3181, 3293, 6362, 6586, 12724, 13172, 15905, 16465, 31810, 32930, 63620, 65860, 117697, 235394, 283109, 470788, 566218, 588485, 1132436, 1176970, 1415545, 2353940, 2831090, 5662180, 10475033, 20950066, 41900132, 52375165, 104750330, 209500660]

約数ペア:

[(1, 209500660), (2, 104750330), (4, 52375165), (5, 41900132), (10, 20950066), (20, 10475033), (37, 5662180), (74, 2831090), (89, 2353940), (148, 1415545), (178, 1176970), (185, 1132436), (356, 588485), (370, 566218), (445, 470788), (740, 283109), (890, 235394), (1780, 117697), (3181, 65860), (3293, 63620), (6362, 32930), (6586, 31810), (12724, 16465), (13172, 15905)]