20102095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 28082880

約数和(自身を除く): 7980785

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 397, 533, 779, 1235, 1985, 2665, 3895, 5161, 7543, 10127, 16277, 25805, 37715, 50635, 81385, 98059, 211601, 309263, 490295, 1058005, 1546315, 4020419, 20102095]

約数ペア:

[(1, 20102095), (5, 4020419), (13, 1546315), (19, 1058005), (41, 490295), (65, 309263), (95, 211601), (205, 98059), (247, 81385), (397, 50635), (533, 37715), (779, 25805), (1235, 16277), (1985, 10127), (2665, 7543), (3895, 5161)]