20816960

素因数分解:

$2^6\times 5^1\times {\mathrm{65053}}^1$

素因数の和:65070

約数の個数: 28

約数和(自身を含む): 49571148

約数和(自身を除く): 28754188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65053, 130106, 260212, 325265, 520424, 650530, 1040848, 1301060, 2081696, 2602120, 4163392, 5204240, 10408480, 20816960]

約数ペア:

[(1, 20816960), (2, 10408480), (4, 5204240), (5, 4163392), (8, 2602120), (10, 2081696), (16, 1301060), (20, 1040848), (32, 650530), (40, 520424), (64, 325265), (80, 260212), (160, 130106), (320, 65053)]