80935480

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10271}}^1$

素因数の和:10479

約数の個数: 32

約数和(自身を含む): 183047040

約数和(自身を除く): 102111560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 10271, 20542, 41084, 51355, 82168, 102710, 205420, 410840, 2023387, 4046774, 8093548, 10116935, 16187096, 20233870, 40467740, 80935480]

約数ペア:

[(1, 80935480), (2, 40467740), (4, 20233870), (5, 16187096), (8, 10116935), (10, 8093548), (20, 4046774), (40, 2023387), (197, 410840), (394, 205420), (788, 102710), (985, 82168), (1576, 51355), (1970, 41084), (3940, 20542), (7880, 10271)]