20671940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44939}}^1$

素因数の和:44971

約数の個数: 24

約数和(自身を含む): 45299520

約数和(自身を除く): 24627580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44939, 89878, 179756, 224695, 449390, 898780, 1033597, 2067194, 4134388, 5167985, 10335970, 20671940]

約数ペア:

[(1, 20671940), (2, 10335970), (4, 5167985), (5, 4134388), (10, 2067194), (20, 1033597), (23, 898780), (46, 449390), (92, 224695), (115, 179756), (230, 89878), (460, 44939)]