12990097925

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1216871}}^1$

素因数の和:1216949

約数の個数: 24

約数和(自身を含む): 18710623872

約数和(自身を除く): 5720525947

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 2135, 10675, 1216871, 6084355, 8518097, 30421775, 42590485, 74229131, 212952425, 371145655, 519603917, 1855728275, 2598019585, 12990097925]

約数ペア:

[(1, 12990097925), (5, 2598019585), (7, 1855728275), (25, 519603917), (35, 371145655), (61, 212952425), (175, 74229131), (305, 42590485), (427, 30421775), (1525, 8518097), (2135, 6084355), (10675, 1216871)]