20920672

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1811}}^1$

素因数の和:1859

約数の個数: 36

約数和(自身を含む): 43493436

約数和(自身を除く): 22572764

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1811, 2888, 3622, 5776, 7244, 11552, 14488, 28976, 34409, 57952, 68818, 137636, 275272, 550544, 653771, 1101088, 1307542, 2615084, 5230168, 10460336, 20920672]

約数ペア:

[(1, 20920672), (2, 10460336), (4, 5230168), (8, 2615084), (16, 1307542), (19, 1101088), (32, 653771), (38, 550544), (76, 275272), (152, 137636), (304, 68818), (361, 57952), (608, 34409), (722, 28976), (1444, 14488), (1811, 11552), (2888, 7244), (3622, 5776)]