19706540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140761}}^1$

素因数の和:140777

約数の個数: 24

約数和(自身を含む): 47296032

約数和(自身を除く): 27589492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140761, 281522, 563044, 703805, 985327, 1407610, 1970654, 2815220, 3941308, 4926635, 9853270, 19706540]

約数ペア:

[(1, 19706540), (2, 9853270), (4, 4926635), (5, 3941308), (7, 2815220), (10, 1970654), (14, 1407610), (20, 985327), (28, 703805), (35, 563044), (70, 281522), (140, 140761)]