81715740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1361929}}^1$

素因数の和:1361941

約数の個数: 24

約数和(自身を含む): 228804240

約数和(自身を除く): 147088500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361929, 2723858, 4085787, 5447716, 6809645, 8171574, 13619290, 16343148, 20428935, 27238580, 40857870, 81715740]

約数ペア:

[(1, 81715740), (2, 40857870), (3, 27238580), (4, 20428935), (5, 16343148), (6, 13619290), (10, 8171574), (12, 6809645), (15, 5447716), (20, 4085787), (30, 2723858), (60, 1361929)]