778855588

素因数分解:

$2^2\times 7^4\times {\mathrm{81097}}^1$

素因数の和:81129

約数の個数: 30

約数和(自身を含む): 1590088486

約数和(自身を除く): 811232898

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2401, 4802, 9604, 81097, 162194, 324388, 567679, 1135358, 2270716, 3973753, 7947506, 15895012, 27816271, 55632542, 111265084, 194713897, 389427794, 778855588]

約数ペア:

[(1, 778855588), (2, 389427794), (4, 194713897), (7, 111265084), (14, 55632542), (28, 27816271), (49, 15895012), (98, 7947506), (196, 3973753), (343, 2270716), (686, 1135358), (1372, 567679), (2401, 324388), (4802, 162194), (9604, 81097)]