772371920

素因数分解:

$2^4\times 5^1\times {\mathrm{9654649}}^1$

素因数の和:9654662

約数の個数: 20

約数和(自身を含む): 1795764900

約数和(自身を除く): 1023392980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9654649, 19309298, 38618596, 48273245, 77237192, 96546490, 154474384, 193092980, 386185960, 772371920]

約数ペア:

[(1, 772371920), (2, 386185960), (4, 193092980), (5, 154474384), (8, 96546490), (10, 77237192), (16, 48273245), (20, 38618596), (40, 19309298), (80, 9654649)]