19461280

素因数分解:

$2^5\times 5^1\times {\mathrm{121633}}^1$

素因数の和:121648

約数の個数: 24

約数和(自身を含む): 45977652

約数和(自身を除く): 26516372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121633, 243266, 486532, 608165, 973064, 1216330, 1946128, 2432660, 3892256, 4865320, 9730640, 19461280]

約数ペア:

[(1, 19461280), (2, 9730640), (4, 4865320), (5, 3892256), (8, 2432660), (10, 1946128), (16, 1216330), (20, 973064), (32, 608165), (40, 486532), (80, 243266), (160, 121633)]