19457120

素因数分解:

$2^5\times 5^1\times {\mathrm{121607}}^1$

素因数の和:121622

約数の個数: 24

約数和(自身を含む): 45967824

約数和(自身を除く): 26510704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121607, 243214, 486428, 608035, 972856, 1216070, 1945712, 2432140, 3891424, 4864280, 9728560, 19457120]

約数ペア:

[(1, 19457120), (2, 9728560), (4, 4864280), (5, 3891424), (8, 2432140), (10, 1945712), (16, 1216070), (20, 972856), (32, 608035), (40, 486428), (80, 243214), (160, 121607)]