81687180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1361453}}^1$

素因数の和:1361465

約数の個数: 24

約数和(自身を含む): 228724272

約数和(自身を除く): 147037092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361453, 2722906, 4084359, 5445812, 6807265, 8168718, 13614530, 16337436, 20421795, 27229060, 40843590, 81687180]

約数ペア:

[(1, 81687180), (2, 40843590), (3, 27229060), (4, 20421795), (5, 16337436), (6, 13614530), (10, 8168718), (12, 6807265), (15, 5445812), (20, 4084359), (30, 2722906), (60, 1361453)]