20879045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 7861051

約数列:

[1, 5, 11, 41, 47, 55, 197, 205, 235, 451, 517, 985, 1927, 2167, 2255, 2585, 8077, 9259, 9635, 10835, 21197, 40385, 46295, 88847, 101849, 105985, 379619, 444235, 509245, 1898095, 4175809, 20879045]

約数ペア:

[(1, 20879045), (5, 4175809), (11, 1898095), (41, 509245), (47, 444235), (55, 379619), (197, 105985), (205, 101849), (235, 88847), (451, 46295), (517, 40385), (985, 21197), (1927, 10835), (2167, 9635), (2255, 9259), (2585, 8077)]