249231940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401987}}^1$

素因数の和:402027

約数の個数: 24

約数和(自身を含む): 540271872

約数和(自身を除く): 291039932

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 401987, 803974, 1607948, 2009935, 4019870, 8039740, 12461597, 24923194, 49846388, 62307985, 124615970, 249231940]

約数ペア:

[(1, 249231940), (2, 124615970), (4, 62307985), (5, 49846388), (10, 24923194), (20, 12461597), (31, 8039740), (62, 4019870), (124, 2009935), (155, 1607948), (310, 803974), (620, 401987)]