1285231472

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{266867}}^1$

素因数の和:266925

約数の個数: 40

約数和(自身を含む): 2912063616

約数和(自身を除く): 1626832144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4816, 266867, 533734, 1067468, 1868069, 2134936, 3736138, 4269872, 7472276, 11475281, 14944552, 22950562, 29889104, 45901124, 80326967, 91802248, 160653934, 183604496, 321307868, 642615736, 1285231472]

約数ペア:

[(1, 1285231472), (2, 642615736), (4, 321307868), (7, 183604496), (8, 160653934), (14, 91802248), (16, 80326967), (28, 45901124), (43, 29889104), (56, 22950562), (86, 14944552), (112, 11475281), (172, 7472276), (301, 4269872), (344, 3736138), (602, 2134936), (688, 1868069), (1204, 1067468), (2408, 533734), (4816, 266867)]