261928865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{15313}}^1$

素因数の和:15640

約数の個数: 16

約数和(自身を含む): 344013696

約数和(自身を除く): 82084831

約数列:

[1, 5, 11, 55, 311, 1555, 3421, 15313, 17105, 76565, 168443, 842215, 4762343, 23811715, 52385773, 261928865]

約数ペア:

[(1, 261928865), (5, 52385773), (11, 23811715), (55, 4762343), (311, 842215), (1555, 168443), (3421, 76565), (15313, 17105)]