19724740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140891}}^1$

素因数の和:140907

約数の個数: 24

約数和(自身を含む): 47339712

約数和(自身を除く): 27614972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140891, 281782, 563564, 704455, 986237, 1408910, 1972474, 2817820, 3944948, 4931185, 9862370, 19724740]

約数ペア:

[(1, 19724740), (2, 9862370), (4, 4931185), (5, 3944948), (7, 2817820), (10, 1972474), (14, 1408910), (20, 986237), (28, 704455), (35, 563564), (70, 281782), (140, 140891)]