81501328

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{221471}}^1$

素因数の和:221502

約数の個数: 20

約数和(自身を含む): 164775168

約数和(自身を除く): 83273840

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 221471, 442942, 885884, 1771768, 3543536, 5093833, 10187666, 20375332, 40750664, 81501328]

約数ペア:

[(1, 81501328), (2, 40750664), (4, 20375332), (8, 10187666), (16, 5093833), (23, 3543536), (46, 1771768), (92, 885884), (184, 442942), (368, 221471)]