66689540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{90121}}^1$

素因数の和:90167

約数の個数: 24

約数和(自身を含む): 143834712

約数和(自身を除く): 77145172

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 90121, 180242, 360484, 450605, 901210, 1802420, 3334477, 6668954, 13337908, 16672385, 33344770, 66689540]

約数ペア:

[(1, 66689540), (2, 33344770), (4, 16672385), (5, 13337908), (10, 6668954), (20, 3334477), (37, 1802420), (74, 901210), (148, 450605), (185, 360484), (370, 180242), (740, 90121)]