78828890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{26189}}^1$

素因数の和:26246

約数の個数: 32

約数和(自身を含む): 165939840

約数和(自身を除く): 87110950

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 26189, 52378, 130945, 183323, 261890, 366646, 916615, 1126127, 1833230, 2252254, 5630635, 7882889, 11261270, 15765778, 39414445, 78828890]

約数ペア:

[(1, 78828890), (2, 39414445), (5, 15765778), (7, 11261270), (10, 7882889), (14, 5630635), (35, 2252254), (43, 1833230), (70, 1126127), (86, 916615), (215, 366646), (301, 261890), (430, 183323), (602, 130945), (1505, 52378), (3010, 26189)]