81866620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{372121}}^1$

素因数の和:372141

約数の個数: 24

約数和(自身を含む): 187549488

約数和(自身を除く): 105682868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 372121, 744242, 1488484, 1860605, 3721210, 4093331, 7442420, 8186662, 16373324, 20466655, 40933310, 81866620]

約数ペア:

[(1, 81866620), (2, 40933310), (4, 20466655), (5, 16373324), (10, 8186662), (11, 7442420), (20, 4093331), (22, 3721210), (44, 1860605), (55, 1488484), (110, 744242), (220, 372121)]