247921940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1770871}}^1$

素因数の和:1770887

約数の個数: 24

約数和(自身を含む): 595012992

約数和(自身を除く): 347091052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1770871, 3541742, 7083484, 8854355, 12396097, 17708710, 24792194, 35417420, 49584388, 61980485, 123960970, 247921940]

約数ペア:

[(1, 247921940), (2, 123960970), (4, 61980485), (5, 49584388), (7, 35417420), (10, 24792194), (14, 17708710), (20, 12396097), (28, 8854355), (35, 7083484), (70, 3541742), (140, 1770871)]