81171248

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{9967}}^1$

素因数の和:10484

約数の個数: 20

約数和(自身を含む): 157594080

約数和(自身を除く): 76422832

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 4072, 8144, 9967, 19934, 39868, 79736, 159472, 5073203, 10146406, 20292812, 40585624, 81171248]

約数ペア:

[(1, 81171248), (2, 40585624), (4, 20292812), (8, 10146406), (16, 5073203), (509, 159472), (1018, 79736), (2036, 39868), (4072, 19934), (8144, 9967)]