28392440

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1087}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 64039680

約数和(自身を除く): 35647240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1087, 1306, 2174, 2612, 3265, 4348, 5224, 5435, 6530, 8696, 10870, 13060, 21740, 26120, 43480, 709811, 1419622, 2839244, 3549055, 5678488, 7098110, 14196220, 28392440]

約数ペア:

[(1, 28392440), (2, 14196220), (4, 7098110), (5, 5678488), (8, 3549055), (10, 2839244), (20, 1419622), (40, 709811), (653, 43480), (1087, 26120), (1306, 21740), (2174, 13060), (2612, 10870), (3265, 8696), (4348, 6530), (5224, 5435)]