20615640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1316

約数の個数: 64

約数和(自身を含む): 62316000

約数和(自身を除く): 41700360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 298, 447, 596, 745, 894, 1153, 1192, 1490, 1788, 2235, 2306, 2980, 3459, 3576, 4470, 4612, 5765, 5960, 6918, 8940, 9224, 11530, 13836, 17295, 17880, 23060, 27672, 34590, 46120, 69180, 138360, 171797, 343594, 515391, 687188, 858985, 1030782, 1374376, 1717970, 2061564, 2576955, 3435940, 4123128, 5153910, 6871880, 10307820, 20615640]

約数ペア:

[(1, 20615640), (2, 10307820), (3, 6871880), (4, 5153910), (5, 4123128), (6, 3435940), (8, 2576955), (10, 2061564), (12, 1717970), (15, 1374376), (20, 1030782), (24, 858985), (30, 687188), (40, 515391), (60, 343594), (120, 171797), (149, 138360), (298, 69180), (447, 46120), (596, 34590), (745, 27672), (894, 23060), (1153, 17880), (1192, 17295), (1490, 13836), (1788, 11530), (2235, 9224), (2306, 8940), (2980, 6918), (3459, 5960), (3576, 5765), (4470, 4612)]