155521040

素因数分解:

$2^4\times 5^1\times {\mathrm{1944013}}^1$

素因数の和:1944026

約数の個数: 20

約数和(自身を含む): 361586604

約数和(自身を除く): 206065564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1944013, 3888026, 7776052, 9720065, 15552104, 19440130, 31104208, 38880260, 77760520, 155521040]

約数ペア:

[(1, 155521040), (2, 77760520), (4, 38880260), (5, 31104208), (8, 19440130), (10, 15552104), (16, 9720065), (20, 7776052), (40, 3888026), (80, 1944013)]