78897131555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{185359}}^1$

素因数の和:185555

約数の個数: 32

約数和(自身を含む): 105699686400

約数和(自身を除く): 26802554845

約数列:

[1, 5, 11, 55, 71, 109, 355, 545, 781, 1199, 3905, 5995, 7739, 38695, 85129, 185359, 425645, 926795, 2038949, 10194745, 13160489, 20204131, 65802445, 101020655, 144765379, 222245441, 723826895, 1111227205, 1434493301, 7172466505, 15779426311, 78897131555]

約数ペア:

[(1, 78897131555), (5, 15779426311), (11, 7172466505), (55, 1434493301), (71, 1111227205), (109, 723826895), (355, 222245441), (545, 144765379), (781, 101020655), (1199, 65802445), (3905, 20204131), (5995, 13160489), (7739, 10194745), (38695, 2038949), (85129, 926795), (185359, 425645)]