12731220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{70729}}^1$

素因数の和:70744

約数の個数: 36

約数和(自身を含む): 38618580

約数和(自身を除く): 25887360

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 70729, 141458, 212187, 282916, 353645, 424374, 636561, 707290, 848748, 1060935, 1273122, 1414580, 2121870, 2546244, 3182805, 4243740, 6365610, 12731220]

約数ペア:

[(1, 12731220), (2, 6365610), (3, 4243740), (4, 3182805), (5, 2546244), (6, 2121870), (9, 1414580), (10, 1273122), (12, 1060935), (15, 848748), (18, 707290), (20, 636561), (30, 424374), (36, 353645), (45, 282916), (60, 212187), (90, 141458), (180, 70729)]