28985360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8837}}^1$

素因数の和:8891

約数の個数: 40

約数和(自身を含む): 69042456

約数和(自身を除く): 40057096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8837, 17674, 35348, 44185, 70696, 88370, 141392, 176740, 353480, 362317, 706960, 724634, 1449268, 1811585, 2898536, 3623170, 5797072, 7246340, 14492680, 28985360]

約数ペア:

[(1, 28985360), (2, 14492680), (4, 7246340), (5, 5797072), (8, 3623170), (10, 2898536), (16, 1811585), (20, 1449268), (40, 724634), (41, 706960), (80, 362317), (82, 353480), (164, 176740), (205, 141392), (328, 88370), (410, 70696), (656, 44185), (820, 35348), (1640, 17674), (3280, 8837)]