18911940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{315199}}^1$

素因数の和:315211

約数の個数: 24

約数和(自身を含む): 52953600

約数和(自身を除く): 34041660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 315199, 630398, 945597, 1260796, 1575995, 1891194, 3151990, 3782388, 4727985, 6303980, 9455970, 18911940]

約数ペア:

[(1, 18911940), (2, 9455970), (3, 6303980), (4, 4727985), (5, 3782388), (6, 3151990), (10, 1891194), (12, 1575995), (15, 1260796), (20, 945597), (30, 630398), (60, 315199)]