81122405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1361}}^1$

素因数の和:1517

約数の個数: 32

約数和(自身を含む): 120814848

約数和(自身を除く): 39692443

約数列:

[1, 5, 7, 13, 35, 65, 91, 131, 455, 655, 917, 1361, 1703, 4585, 6805, 8515, 9527, 11921, 17693, 47635, 59605, 88465, 123851, 178291, 619255, 891455, 1248037, 2317783, 6240185, 11588915, 16224481, 81122405]

約数ペア:

[(1, 81122405), (5, 16224481), (7, 11588915), (13, 6240185), (35, 2317783), (65, 1248037), (91, 891455), (131, 619255), (455, 178291), (655, 123851), (917, 88465), (1361, 59605), (1703, 47635), (4585, 17693), (6805, 11921), (8515, 9527)]