81531340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{370597}}^1$

素因数の和:370617

約数の個数: 24

約数和(自身を含む): 186781392

約数和(自身を除く): 105250052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 370597, 741194, 1482388, 1852985, 3705970, 4076567, 7411940, 8153134, 16306268, 20382835, 40765670, 81531340]

約数ペア:

[(1, 81531340), (2, 40765670), (4, 20382835), (5, 16306268), (10, 8153134), (11, 7411940), (20, 4076567), (22, 3705970), (44, 1852985), (55, 1482388), (110, 741194), (220, 370597)]