68779090

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{17681}}^1$

素因数の和:18077

約数の個数: 16

約数和(自身を含む): 124127640

約数和(自身を除く): 55348550

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 17681, 35362, 88405, 176810, 6877909, 13755818, 34389545, 68779090]

約数ペア:

[(1, 68779090), (2, 34389545), (5, 13755818), (10, 6877909), (389, 176810), (778, 88405), (1945, 35362), (3890, 17681)]