1720980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{3187}}^1$

素因数の和:3205

約数の個数: 48

約数和(自身を含む): 5355840

約数和(自身を除く): 3634860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 3187, 6374, 9561, 12748, 15935, 19122, 28683, 31870, 38244, 47805, 57366, 63740, 86049, 95610, 114732, 143415, 172098, 191220, 286830, 344196, 430245, 573660, 860490, 1720980]

約数ペア:

[(1, 1720980), (2, 860490), (3, 573660), (4, 430245), (5, 344196), (6, 286830), (9, 191220), (10, 172098), (12, 143415), (15, 114732), (18, 95610), (20, 86049), (27, 63740), (30, 57366), (36, 47805), (45, 38244), (54, 31870), (60, 28683), (90, 19122), (108, 15935), (135, 12748), (180, 9561), (270, 6374), (540, 3187)]