1215540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{2251}}^1$

素因数の和:2269

約数の個数: 48

約数和(自身を含む): 3783360

約数和(自身を除く): 2567820

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, 2251, 4502, 6753, 9004, 11255, 13506, 20259, 22510, 27012, 33765, 40518, 45020, 60777, 67530, 81036, 101295, 121554, 135060, 202590, 243108, 303885, 405180, 607770, 1215540]

約数ペア:

[(1, 1215540), (2, 607770), (3, 405180), (4, 303885), (5, 243108), (6, 202590), (9, 135060), (10, 121554), (12, 101295), (15, 81036), (18, 67530), (20, 60777), (27, 45020), (30, 40518), (36, 33765), (45, 27012), (54, 22510), (60, 20259), (90, 13506), (108, 11255), (135, 9004), (180, 6753), (270, 4502), (540, 2251)]