80947520

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1931}}^1$

素因数の和:2079

約数の個数: 56

約数和(自身を含む): 194328288

約数和(自身を除く): 113380768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 524, 655, 1048, 1310, 1931, 2096, 2620, 3862, 4192, 5240, 7724, 8384, 9655, 10480, 15448, 19310, 20960, 30896, 38620, 41920, 61792, 77240, 123584, 154480, 252961, 308960, 505922, 617920, 1011844, 1264805, 2023688, 2529610, 4047376, 5059220, 8094752, 10118440, 16189504, 20236880, 40473760, 80947520]

約数ペア:

[(1, 80947520), (2, 40473760), (4, 20236880), (5, 16189504), (8, 10118440), (10, 8094752), (16, 5059220), (20, 4047376), (32, 2529610), (40, 2023688), (64, 1264805), (80, 1011844), (131, 617920), (160, 505922), (262, 308960), (320, 252961), (524, 154480), (655, 123584), (1048, 77240), (1310, 61792), (1931, 41920), (2096, 38620), (2620, 30896), (3862, 20960), (4192, 19310), (5240, 15448), (7724, 10480), (8384, 9655)]