81338220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451879}}^1$

素因数の和:451894

約数の個数: 36

約数和(自身を含む): 246726480

約数和(自身を除く): 165388260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451879, 903758, 1355637, 1807516, 2259395, 2711274, 4066911, 4518790, 5422548, 6778185, 8133822, 9037580, 13556370, 16267644, 20334555, 27112740, 40669110, 81338220]

約数ペア:

[(1, 81338220), (2, 40669110), (3, 27112740), (4, 20334555), (5, 16267644), (6, 13556370), (9, 9037580), (10, 8133822), (12, 6778185), (15, 5422548), (18, 4518790), (20, 4066911), (30, 2711274), (36, 2259395), (45, 1807516), (60, 1355637), (90, 903758), (180, 451879)]