205905755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1913}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 286640640

約数和(自身を除く): 80734885

約数列:

[1, 5, 11, 19, 55, 95, 103, 209, 515, 1045, 1133, 1913, 1957, 5665, 9565, 9785, 21043, 21527, 36347, 105215, 107635, 181735, 197039, 399817, 985195, 1999085, 2167429, 3743741, 10837145, 18718705, 41181151, 205905755]

約数ペア:

[(1, 205905755), (5, 41181151), (11, 18718705), (19, 10837145), (55, 3743741), (95, 2167429), (103, 1999085), (209, 985195), (515, 399817), (1045, 197039), (1133, 181735), (1913, 107635), (1957, 105215), (5665, 36347), (9565, 21527), (9785, 21043)]