20272976

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1119

約数の個数: 40

約数和(自身を含む): 42200424

約数和(自身を除く): 21927448

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 73, 136, 146, 272, 292, 584, 1021, 1168, 1241, 2042, 2482, 4084, 4964, 8168, 9928, 16336, 17357, 19856, 34714, 69428, 74533, 138856, 149066, 277712, 298132, 596264, 1192528, 1267061, 2534122, 5068244, 10136488, 20272976]

約数ペア:

[(1, 20272976), (2, 10136488), (4, 5068244), (8, 2534122), (16, 1267061), (17, 1192528), (34, 596264), (68, 298132), (73, 277712), (136, 149066), (146, 138856), (272, 74533), (292, 69428), (584, 34714), (1021, 19856), (1168, 17357), (1241, 16336), (2042, 9928), (2482, 8168), (4084, 4964)]