79648280

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9437}}^1$

素因数の和:9659

約数の個数: 32

約数和(自身を含む): 180077040

約数和(自身を除く): 100428760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 9437, 18874, 37748, 47185, 75496, 94370, 188740, 377480, 1991207, 3982414, 7964828, 9956035, 15929656, 19912070, 39824140, 79648280]

約数ペア:

[(1, 79648280), (2, 39824140), (4, 19912070), (5, 15929656), (8, 9956035), (10, 7964828), (20, 3982414), (40, 1991207), (211, 377480), (422, 188740), (844, 94370), (1055, 75496), (1688, 47185), (2110, 37748), (4220, 18874), (8440, 9437)]