20706416

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8243}}^1$

素因数の和:8408

約数の個数: 20

約数和(自身を含む): 40379112

約数和(自身を除く): 19672696

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8243, 16486, 32972, 65944, 131888, 1294151, 2588302, 5176604, 10353208, 20706416]

約数ペア:

[(1, 20706416), (2, 10353208), (4, 5176604), (8, 2588302), (16, 1294151), (157, 131888), (314, 65944), (628, 32972), (1256, 16486), (2512, 8243)]