19696240

素因数分解:

$2^4\times 5^1\times {\mathrm{246203}}^1$

素因数の和:246216

約数の個数: 20

約数和(自身を含む): 45793944

約数和(自身を除く): 26097704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246203, 492406, 984812, 1231015, 1969624, 2462030, 3939248, 4924060, 9848120, 19696240]

約数ペア:

[(1, 19696240), (2, 9848120), (4, 4924060), (5, 3939248), (8, 2462030), (10, 1969624), (16, 1231015), (20, 984812), (40, 492406), (80, 246203)]