81660808

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{2239}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 158054400

約数和(自身を除く): 76393592

約数列:

[1, 2, 4, 8, 47, 94, 97, 188, 194, 376, 388, 776, 2239, 4478, 4559, 8956, 9118, 17912, 18236, 36472, 105233, 210466, 217183, 420932, 434366, 841864, 868732, 1737464, 10207601, 20415202, 40830404, 81660808]

約数ペア:

[(1, 81660808), (2, 40830404), (4, 20415202), (8, 10207601), (47, 1737464), (94, 868732), (97, 841864), (188, 434366), (194, 420932), (376, 217183), (388, 210466), (776, 105233), (2239, 36472), (4478, 18236), (4559, 17912), (8956, 9118)]