77728280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277601}}^1$

素因数の和:277619

約数の個数: 32

約数和(自身を含む): 199873440

約数和(自身を除く): 122145160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 277601, 555202, 1110404, 1388005, 1943207, 2220808, 2776010, 3886414, 5552020, 7772828, 9716035, 11104040, 15545656, 19432070, 38864140, 77728280]

約数ペア:

[(1, 77728280), (2, 38864140), (4, 19432070), (5, 15545656), (7, 11104040), (8, 9716035), (10, 7772828), (14, 5552020), (20, 3886414), (28, 2776010), (35, 2220808), (40, 1943207), (56, 1388005), (70, 1110404), (140, 555202), (280, 277601)]