19309780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137927}}^1$

素因数の和:137943

約数の個数: 24

約数和(自身を含む): 46343808

約数和(自身を除く): 27034028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137927, 275854, 551708, 689635, 965489, 1379270, 1930978, 2758540, 3861956, 4827445, 9654890, 19309780]

約数ペア:

[(1, 19309780), (2, 9654890), (4, 4827445), (5, 3861956), (7, 2758540), (10, 1930978), (14, 1379270), (20, 965489), (28, 689635), (35, 551708), (70, 275854), (140, 137927)]