20078416

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{7993}}^1$

素因数の和:8158

約数の個数: 20

約数和(自身を含む): 39154612

約数和(自身を除く): 19076196

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 7993, 15986, 31972, 63944, 127888, 1254901, 2509802, 5019604, 10039208, 20078416]

約数ペア:

[(1, 20078416), (2, 10039208), (4, 5019604), (8, 2509802), (16, 1254901), (157, 127888), (314, 63944), (628, 31972), (1256, 15986), (2512, 7993)]