66204880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16889}}^1$

素因数の和:16916

約数の個数: 60

約数和(自身を含む): 179067780

約数和(自身を除く): 112862900

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, 16889, 33778, 67556, 84445, 118223, 135112, 168890, 236446, 270224, 337780, 472892, 591115, 675560, 827561, 945784, 1182230, 1351120, 1655122, 1891568, 2364460, 3310244, 4137805, 4728920, 6620488, 8275610, 9457840, 13240976, 16551220, 33102440, 66204880]

約数ペア:

[(1, 66204880), (2, 33102440), (4, 16551220), (5, 13240976), (7, 9457840), (8, 8275610), (10, 6620488), (14, 4728920), (16, 4137805), (20, 3310244), (28, 2364460), (35, 1891568), (40, 1655122), (49, 1351120), (56, 1182230), (70, 945784), (80, 827561), (98, 675560), (112, 591115), (140, 472892), (196, 337780), (245, 270224), (280, 236446), (392, 168890), (490, 135112), (560, 118223), (784, 84445), (980, 67556), (1960, 33778), (3920, 16889)]