81662778

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 180311040

約数和(自身を除く): 98648262

約数列:

[1, 2, 3, 6, 9, 18, 127, 139, 254, 257, 278, 381, 417, 514, 762, 771, 834, 1143, 1251, 1542, 2286, 2313, 2502, 4626, 17653, 32639, 35306, 35723, 52959, 65278, 71446, 97917, 105918, 107169, 158877, 195834, 214338, 293751, 317754, 321507, 587502, 643014, 4536821, 9073642, 13610463, 27220926, 40831389, 81662778]

約数ペア:

[(1, 81662778), (2, 40831389), (3, 27220926), (6, 13610463), (9, 9073642), (18, 4536821), (127, 643014), (139, 587502), (254, 321507), (257, 317754), (278, 293751), (381, 214338), (417, 195834), (514, 158877), (762, 107169), (771, 105918), (834, 97917), (1143, 71446), (1251, 65278), (1542, 52959), (2286, 35723), (2313, 35306), (2502, 32639), (4626, 17653)]