81706620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1361777}}^1$

素因数の和:1361789

約数の個数: 24

約数和(自身を含む): 228778704

約数和(自身を除く): 147072084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361777, 2723554, 4085331, 5447108, 6808885, 8170662, 13617770, 16341324, 20426655, 27235540, 40853310, 81706620]

約数ペア:

[(1, 81706620), (2, 40853310), (3, 27235540), (4, 20426655), (5, 16341324), (6, 13617770), (10, 8170662), (12, 6808885), (15, 5447108), (20, 4085331), (30, 2723554), (60, 1361777)]