81655380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453641}}^1$

素因数の和:453656

約数の個数: 36

約数和(自身を含む): 247688532

約数和(自身を除く): 166033152

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453641, 907282, 1360923, 1814564, 2268205, 2721846, 4082769, 4536410, 5443692, 6804615, 8165538, 9072820, 13609230, 16331076, 20413845, 27218460, 40827690, 81655380]

約数ペア:

[(1, 81655380), (2, 40827690), (3, 27218460), (4, 20413845), (5, 16331076), (6, 13609230), (9, 9072820), (10, 8165538), (12, 6804615), (15, 5443692), (18, 4536410), (20, 4082769), (30, 2721846), (36, 2268205), (45, 1814564), (60, 1360923), (90, 907282), (180, 453641)]