81004235

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{5639}}^1$

素因数の和:5687

約数の個数: 24

約数和(自身を含む): 111468960

約数和(自身を除く): 30464725

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 5639, 14365, 28195, 73307, 95863, 366535, 479315, 952991, 1246219, 4764955, 6231095, 16200847, 81004235]

約数ペア:

[(1, 81004235), (5, 16200847), (13, 6231095), (17, 4764955), (65, 1246219), (85, 952991), (169, 479315), (221, 366535), (845, 95863), (1105, 73307), (2873, 28195), (5639, 14365)]