20705188

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 23203292

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 593, 602, 812, 1186, 1204, 1247, 2372, 2494, 4151, 4988, 8302, 8729, 16604, 17197, 17458, 25499, 34394, 34916, 50998, 68788, 101996, 120379, 178493, 240758, 356986, 481516, 713972, 739471, 1478942, 2957884, 5176297, 10352594, 20705188]

約数ペア:

[(1, 20705188), (2, 10352594), (4, 5176297), (7, 2957884), (14, 1478942), (28, 739471), (29, 713972), (43, 481516), (58, 356986), (86, 240758), (116, 178493), (172, 120379), (203, 101996), (301, 68788), (406, 50998), (593, 34916), (602, 34394), (812, 25499), (1186, 17458), (1204, 17197), (1247, 16604), (2372, 8729), (2494, 8302), (4151, 4988)]