81188880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338287}}^1$

素因数の和:338303

約数の個数: 40

約数和(自身を含む): 251686272

約数和(自身を除く): 170497392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338287, 676574, 1014861, 1353148, 1691435, 2029722, 2706296, 3382870, 4059444, 5074305, 5412592, 6765740, 8118888, 10148610, 13531480, 16237776, 20297220, 27062960, 40594440, 81188880]

約数ペア:

[(1, 81188880), (2, 40594440), (3, 27062960), (4, 20297220), (5, 16237776), (6, 13531480), (8, 10148610), (10, 8118888), (12, 6765740), (15, 5412592), (16, 5074305), (20, 4059444), (24, 3382870), (30, 2706296), (40, 2029722), (48, 1691435), (60, 1353148), (80, 1014861), (120, 676574), (240, 338287)]