90235405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 124637184

約数和(自身を除く): 34401779

約数列:

[1, 5, 13, 17, 65, 85, 127, 221, 635, 643, 1105, 1651, 2159, 3215, 8255, 8359, 10795, 10931, 28067, 41795, 54655, 81661, 140335, 142103, 408305, 710515, 1061593, 1388237, 5307965, 6941185, 18047081, 90235405]

約数ペア:

[(1, 90235405), (5, 18047081), (13, 6941185), (17, 5307965), (65, 1388237), (85, 1061593), (127, 710515), (221, 408305), (635, 142103), (643, 140335), (1105, 81661), (1651, 54655), (2159, 41795), (3215, 28067), (8255, 10931), (8359, 10795)]