2021304880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{515639}}^1$

素因数の和:515666

約数の個数: 60

約数和(自身を含む): 5466815280

約数和(自身を除く): 3445510400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 515639, 1031278, 2062556, 2578195, 3609473, 4125112, 5156390, 7218946, 8250224, 10312780, 14437892, 18047365, 20625560, 25266311, 28875784, 36094730, 41251120, 50532622, 57751568, 72189460, 101065244, 126331555, 144378920, 202130488, 252663110, 288757840, 404260976, 505326220, 1010652440, 2021304880]

約数ペア:

[(1, 2021304880), (2, 1010652440), (4, 505326220), (5, 404260976), (7, 288757840), (8, 252663110), (10, 202130488), (14, 144378920), (16, 126331555), (20, 101065244), (28, 72189460), (35, 57751568), (40, 50532622), (49, 41251120), (56, 36094730), (70, 28875784), (80, 25266311), (98, 20625560), (112, 18047365), (140, 14437892), (196, 10312780), (245, 8250224), (280, 7218946), (392, 5156390), (490, 4125112), (560, 3609473), (784, 2578195), (980, 2062556), (1960, 1031278), (3920, 515639)]