81661528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{785207}}^1$

素因数の和:785226

約数の個数: 16

約数和(自身を含む): 164893680

約数和(自身を除く): 83232152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 785207, 1570414, 3140828, 6281656, 10207691, 20415382, 40830764, 81661528]

約数ペア:

[(1, 81661528), (2, 40830764), (4, 20415382), (8, 10207691), (13, 6281656), (26, 3140828), (52, 1570414), (104, 785207)]