20439548

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 39674880

約数和(自身を除く): 19235332

約数列:

[1, 2, 4, 23, 29, 46, 47, 58, 92, 94, 116, 163, 188, 326, 652, 667, 1081, 1334, 1363, 2162, 2668, 2726, 3749, 4324, 4727, 5452, 7498, 7661, 9454, 14996, 15322, 18908, 30644, 31349, 62698, 108721, 125396, 176203, 217442, 222169, 352406, 434884, 444338, 704812, 888676, 5109887, 10219774, 20439548]

約数ペア:

[(1, 20439548), (2, 10219774), (4, 5109887), (23, 888676), (29, 704812), (46, 444338), (47, 434884), (58, 352406), (92, 222169), (94, 217442), (116, 176203), (163, 125396), (188, 108721), (326, 62698), (652, 31349), (667, 30644), (1081, 18908), (1334, 15322), (1363, 14996), (2162, 9454), (2668, 7661), (2726, 7498), (3749, 5452), (4324, 4727)]