1388404810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{81527}}^1$

素因数の和:81678

約数の個数: 32

約数和(自身を含む): 2711947392

約数和(自身を除く): 1323542582

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1310, 1703, 3406, 8515, 17030, 81527, 163054, 407635, 815270, 1059851, 2119702, 5299255, 10598510, 10680037, 21360074, 53400185, 106800370, 138840481, 277680962, 694202405, 1388404810]

約数ペア:

[(1, 1388404810), (2, 694202405), (5, 277680962), (10, 138840481), (13, 106800370), (26, 53400185), (65, 21360074), (130, 10680037), (131, 10598510), (262, 5299255), (655, 2119702), (1310, 1059851), (1703, 815270), (3406, 407635), (8515, 163054), (17030, 81527)]