81908255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1181}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 116762688

約数和(自身を除く): 34854433

約数列:

[1, 5, 11, 13, 55, 65, 97, 143, 485, 715, 1067, 1181, 1261, 5335, 5905, 6305, 12991, 13871, 15353, 64955, 69355, 76765, 114557, 168883, 572785, 844415, 1260127, 1489241, 6300635, 7446205, 16381651, 81908255]

約数ペア:

[(1, 81908255), (5, 16381651), (11, 7446205), (13, 6300635), (55, 1489241), (65, 1260127), (97, 844415), (143, 572785), (485, 168883), (715, 114557), (1067, 76765), (1181, 69355), (1261, 64955), (5335, 15353), (5905, 13871), (6305, 12991)]