20455190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2731}}^1$

素因数の和:2852

約数の個数: 32

約数和(自身を含む): 42488064

約数和(自身を除く): 22032874

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 107, 214, 535, 749, 1070, 1498, 2731, 3745, 5462, 7490, 13655, 19117, 27310, 38234, 95585, 191170, 292217, 584434, 1461085, 2045519, 2922170, 4091038, 10227595, 20455190]

約数ペア:

[(1, 20455190), (2, 10227595), (5, 4091038), (7, 2922170), (10, 2045519), (14, 1461085), (35, 584434), (70, 292217), (107, 191170), (214, 95585), (535, 38234), (749, 27310), (1070, 19117), (1498, 13655), (2731, 7490), (3745, 5462)]