20503088

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1753}}^1$

素因数の和:1821

約数の個数: 40

約数和(自身を含む): 43064208

約数和(自身を除く): 22561120

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1753, 2924, 3506, 5848, 7012, 11696, 14024, 28048, 29801, 59602, 75379, 119204, 150758, 238408, 301516, 476816, 603032, 1206064, 1281443, 2562886, 5125772, 10251544, 20503088]

約数ペア:

[(1, 20503088), (2, 10251544), (4, 5125772), (8, 2562886), (16, 1281443), (17, 1206064), (34, 603032), (43, 476816), (68, 301516), (86, 238408), (136, 150758), (172, 119204), (272, 75379), (344, 59602), (688, 29801), (731, 28048), (1462, 14024), (1753, 11696), (2924, 7012), (3506, 5848)]