81249575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6871}}^1$

素因数の和:6935

約数の個数: 24

約数和(自身を含む): 112480896

約数和(自身を除く): 31231321

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 2365, 6871, 11825, 34355, 75581, 171775, 295453, 377905, 1477265, 1889525, 3249983, 7386325, 16249915, 81249575]

約数ペア:

[(1, 81249575), (5, 16249915), (11, 7386325), (25, 3249983), (43, 1889525), (55, 1477265), (215, 377905), (275, 295453), (473, 171775), (1075, 75581), (2365, 34355), (6871, 11825)]