28398748

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 58938880

約数和(自身を除く): 30540132

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 103, 172, 206, 229, 301, 412, 458, 602, 721, 916, 1204, 1442, 1603, 2884, 3206, 4429, 6412, 8858, 9847, 17716, 19694, 23587, 31003, 39388, 47174, 62006, 68929, 94348, 124012, 137858, 165109, 275716, 330218, 660436, 1014241, 2028482, 4056964, 7099687, 14199374, 28398748]

約数ペア:

[(1, 28398748), (2, 14199374), (4, 7099687), (7, 4056964), (14, 2028482), (28, 1014241), (43, 660436), (86, 330218), (103, 275716), (172, 165109), (206, 137858), (229, 124012), (301, 94348), (412, 68929), (458, 62006), (602, 47174), (721, 39388), (916, 31003), (1204, 23587), (1442, 19694), (1603, 17716), (2884, 9847), (3206, 8858), (4429, 6412)]