18867858985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1\times {\mathrm{3769}}^1$

素因数の和:4329

約数の個数: 32

約数和(自身を含む): 23921464320

約数和(自身を除く): 5053605335

約数列:

[1, 5, 23, 101, 115, 431, 505, 2155, 2323, 3769, 9913, 11615, 18845, 43531, 49565, 86687, 217655, 380669, 433435, 1001213, 1624439, 1903345, 5006065, 8122195, 8755387, 37362097, 43776935, 164068339, 186810485, 820341695, 3773571797, 18867858985]

約数ペア:

[(1, 18867858985), (5, 3773571797), (23, 820341695), (101, 186810485), (115, 164068339), (431, 43776935), (505, 37362097), (2155, 8755387), (2323, 8122195), (3769, 5006065), (9913, 1903345), (11615, 1624439), (18845, 1001213), (43531, 433435), (49565, 380669), (86687, 217655)]