19706980

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1597}}^1$

素因数の和:2223

約数の個数: 24

約数和(自身を含む): 41477688

約数和(自身を除く): 21770708

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 1597, 2468, 3085, 3194, 6170, 6388, 7985, 12340, 15970, 31940, 985349, 1970698, 3941396, 4926745, 9853490, 19706980]

約数ペア:

[(1, 19706980), (2, 9853490), (4, 4926745), (5, 3941396), (10, 1970698), (20, 985349), (617, 31940), (1234, 15970), (1597, 12340), (2468, 7985), (3085, 6388), (3194, 6170)]