855261785

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{17417}}^1$

素因数の和:17513

約数の個数: 32

約数和(自身を含む): 1244063232

約数和(自身を除く): 388801447

約数列:

[1, 5, 7, 23, 35, 61, 115, 161, 305, 427, 805, 1403, 2135, 7015, 9821, 17417, 49105, 87085, 121919, 400591, 609595, 1062437, 2002955, 2804137, 5312185, 7437059, 14020685, 24436051, 37185295, 122180255, 171052357, 855261785]

約数ペア:

[(1, 855261785), (5, 171052357), (7, 122180255), (23, 37185295), (35, 24436051), (61, 14020685), (115, 7437059), (161, 5312185), (305, 2804137), (427, 2002955), (805, 1062437), (1403, 609595), (2135, 400591), (7015, 121919), (9821, 87085), (17417, 49105)]