81357724

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 166182912

約数和(自身を除く): 84825188

約数列:

[1, 2, 4, 7, 14, 28, 127, 137, 167, 254, 274, 334, 508, 548, 668, 889, 959, 1169, 1778, 1918, 2338, 3556, 3836, 4676, 17399, 21209, 22879, 34798, 42418, 45758, 69596, 84836, 91516, 121793, 148463, 160153, 243586, 296926, 320306, 487172, 593852, 640612, 2905633, 5811266, 11622532, 20339431, 40678862, 81357724]

約数ペア:

[(1, 81357724), (2, 40678862), (4, 20339431), (7, 11622532), (14, 5811266), (28, 2905633), (127, 640612), (137, 593852), (167, 487172), (254, 320306), (274, 296926), (334, 243586), (508, 160153), (548, 148463), (668, 121793), (889, 91516), (959, 84836), (1169, 69596), (1778, 45758), (1918, 42418), (2338, 34798), (3556, 22879), (3836, 21209), (4676, 17399)]