280933016

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{385897}}^1$

素因数の和:385923

約数の個数: 32

約数和(自身を含む): 648308640

約数和(自身を除く): 367375624

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 385897, 771794, 1543588, 2701279, 3087176, 5016661, 5402558, 10033322, 10805116, 20066644, 21610232, 35116627, 40133288, 70233254, 140466508, 280933016]

約数ペア:

[(1, 280933016), (2, 140466508), (4, 70233254), (7, 40133288), (8, 35116627), (13, 21610232), (14, 20066644), (26, 10805116), (28, 10033322), (52, 5402558), (56, 5016661), (91, 3087176), (104, 2701279), (182, 1543588), (364, 771794), (728, 385897)]