81730980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454061}}^1$

素因数の和:454076

約数の個数: 36

約数和(自身を含む): 247917852

約数和(自身を除く): 166186872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454061, 908122, 1362183, 1816244, 2270305, 2724366, 4086549, 4540610, 5448732, 6810915, 8173098, 9081220, 13621830, 16346196, 20432745, 27243660, 40865490, 81730980]

約数ペア:

[(1, 81730980), (2, 40865490), (3, 27243660), (4, 20432745), (5, 16346196), (6, 13621830), (9, 9081220), (10, 8173098), (12, 6810915), (15, 5448732), (18, 4540610), (20, 4086549), (30, 2724366), (36, 2270305), (45, 1816244), (60, 1362183), (90, 908122), (180, 454061)]