78507940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560771}}^1$

素因数の和:560787

約数の個数: 24

約数和(自身を含む): 188419392

約数和(自身を除く): 109911452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560771, 1121542, 2243084, 2803855, 3925397, 5607710, 7850794, 11215420, 15701588, 19626985, 39253970, 78507940]

約数ペア:

[(1, 78507940), (2, 39253970), (4, 19626985), (5, 15701588), (7, 11215420), (10, 7850794), (14, 5607710), (20, 3925397), (28, 2803855), (35, 2243084), (70, 1121542), (140, 560771)]