18882020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9733}}^1$

素因数の和:9839

約数の個数: 24

約数和(自身を含む): 40065144

約数和(自身を除く): 21183124

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9733, 19466, 38932, 48665, 97330, 194660, 944101, 1888202, 3776404, 4720505, 9441010, 18882020]

約数ペア:

[(1, 18882020), (2, 9441010), (4, 4720505), (5, 3776404), (10, 1888202), (20, 944101), (97, 194660), (194, 97330), (388, 48665), (485, 38932), (970, 19466), (1940, 9733)]