81601365

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 133422336

約数和(自身を除く): 51820971

約数列:

[1, 3, 5, 15, 71, 193, 213, 355, 397, 579, 965, 1065, 1191, 1985, 2895, 5955, 13703, 28187, 41109, 68515, 76621, 84561, 140935, 205545, 229863, 383105, 422805, 1149315, 5440091, 16320273, 27200455, 81601365]

約数ペア:

[(1, 81601365), (3, 27200455), (5, 16320273), (15, 5440091), (71, 1149315), (193, 422805), (213, 383105), (355, 229863), (397, 205545), (579, 140935), (965, 84561), (1065, 76621), (1191, 68515), (1985, 41109), (2895, 28187), (5955, 13703)]