71720216

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{208489}}^1$

素因数の和:208538

約数の個数: 16

約数和(自身を含む): 137603400

約数和(自身を除く): 65883184

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 208489, 416978, 833956, 1667912, 8965027, 17930054, 35860108, 71720216]

約数ペア:

[(1, 71720216), (2, 35860108), (4, 17930054), (8, 8965027), (43, 1667912), (86, 833956), (172, 416978), (344, 208489)]