12747920

素因数分解:

$2^4\times 5^1\times {\mathrm{159349}}^1$

素因数の和:159362

約数の個数: 20

約数和(自身を含む): 29639100

約数和(自身を除く): 16891180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159349, 318698, 637396, 796745, 1274792, 1593490, 2549584, 3186980, 6373960, 12747920]

約数ペア:

[(1, 12747920), (2, 6373960), (4, 3186980), (5, 2549584), (8, 1593490), (10, 1274792), (16, 796745), (20, 637396), (40, 318698), (80, 159349)]